@article {151,
	title = {Morphogenetic plastid migration and microtubule organization during megasporogenesis in Isoetes},
	journal = {Protoplasma},
	volume = {152},
	year = {1989},
	note = {Cited By (since 1996):8Export Date: 11 November 2013Source: Scopus},
	month = {1989///},
	pages = {136 - 147},
	abstract = {The large megasporocytes of Isoetes provide an exceptional system for studying microtubule dynamics in monoplastidic meiosis where plastid polarity assures coordination of plastid and nuclear division by the intimate association of MTOCs with plastids. Division and migration of the plastid in prophase establishes the tetrahedrally arranged cytoplasmic domains of the future spore tetrad and the four plastid-MTOCs serve as focal points of a unique quadripolar microtubule system (QMS). The QMS is a dynamic structure which functions in plastid deployment and contributes directly to development of both first and second division spindles. The nucleation of microtubules at discrete plastid-MTOCs is compared with centrosomal nucleation of microtubules in animal cells where growth of microtubules involves dynamic instability. {\textcopyright} 1989 Springer-Verlag.},
	keywords = {Isoetes, megasporogenesis, meiosis, Microtubules, Mitotic apparatus, Monoplastidy},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0001447651\&partnerID=40\&md5=8b7012cd1332d93eee67552099d26e38},
	author = {Brown, R.C. and Lemmon, B.E.}
}
@article {156,
	title = {Plastid apportionment and preprophase microtubule bands in monoplastidic root meristem cells of Isoetes and Selaginella},
	journal = {Protoplasma},
	volume = {123},
	year = {1984},
	note = {Cited By (since 1996):5Export Date: 11 November 2013Source: Scopus},
	month = {1984///},
	pages = {95 - 103},
	abstract = {Ultrastructural observations on monoplastidic root tip cells of Isoetes and Selaginella demonstrate two important phenomena associated with preprophasic preparation for mitotic cell division, 1. the preprophase band and 2. precise orientation of the dividing plastid relative to the preprophase band. Both of these phenomena accurately predict the future plane of cell division. The plastid divides in a plane parallel to the spindle and each cell inherits a single plastid which caps the telophase nucleus. When succesive transverse divisions occur, the plastid migrates prior to prophase from a position near an old transverse wall to a lateral position in the cell. The plastid is oriented with its median constriction precisely intersected by the plane of the preprophase band. When a longitudinal division follows a transverse division, the plastid remains in its position adjacent to an old transverse wall where it is bisected by the plane of the longitudinally oriented preprophase band microtubules. {\textcopyright} 1984 Springer-Verlag.},
	keywords = {Isoetes, Microtubules, Mitosis, Plastids, Preprophase Band, Selaginella},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0002906412\&partnerID=40\&md5=b3cea711cdf0bf1636ca85aff68bf553},
	author = {Brown, R.C. and Lemmon, B.E.}
}
@article {129,
	title = {Biosystematic studies on the genus Isoetes (Isoetaceae) in Japan. II. Meiotic behavior and reproductive mode of each cytotype},
	journal = {American Journal of Botany},
	volume = {83},
	year = {1996},
	note = {Cited By (since 1996):13Export Date: 11 November 2013Source: Scopus},
	month = {1996///},
	pages = {1309 - 1322},
	abstract = {Meiotic behaviors and reproductive modes of Japanese Isoetes were studied. The hexaploid (2n = 66) and the octaploid (2n = 88) of I. japonica consistently formed 33 and 44 bivalents, respectively, at diakinesis and/or metaphase I in both micro- and megaspore mother cells. The tetraploid (2n = 44) of I. sinensis formed 22 bivalents and its hexaploid made 33 bivalents in both types of spore mother cells. At diakinesis and/or metaphase I of microspore mother cells in I. asiatica with 2n = 22, 11 bivalents were detected. Because behaviors of meiosis in all cytotypes mentioned above were quite regular and plants yielded normal-appearing spores, they should reproduce sexually. Aneuploids of I. japonica with 2n = 87 formed 43 bivalents and one univalent, and I. sinensis with 2n = 65 formed 32 bivalents and one univalent in microspore mother cells. Meiosis of both cytotypes was almost regular and yielded microspores of normal appearance. In the heptaploid (2n = 77) of I. japonica, a configuration of 22 bivalents and 33 univalents was detected in micro- and megaspore mother cells, and various irregularities were observed throughout the meiotic divisions. Therefore, the genomic formula of the heptaploid is symbolized as AABBCDE, and the heptaploid is a sterile F 1 hybrid between the hexaploid (AABBCC) and the octaploid (AABBDDEE) of I. japonica. Since diploid and even-numbered polyploids regularly formed bivalents and odd-numbered ones displayed irregularities, allopolyploidy should act as a significant speciation mechanism in this genus.},
	keywords = {Chromosome, Hybrid, Isoetes, megasporogenesis, meiosis, microsporogene sis, polyplo id, reproductive mode},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030475989\&partnerID=40\&md5=996182a1723b75d447e3a2137006f7bd},
	author = {Takamiya, M. and Watanabe, M. and Ono, K.}
}
@article {131,
	title = {Biosystematic studies on the genus Isoetes (Isoetaceae) in Japan. III. Variability within qualitative and quantitative morphology of spores},
	journal = {Journal of Plant Research},
	volume = {109},
	year = {1996},
	note = {Cited By (since 1996):10Export Date: 11 November 2013Source: Scopus},
	month = {1996///},
	pages = {281 - 296},
	abstract = {Qualitative and quantitative characteristics of mega- and microspores from all the cytotypes of Japanese Isoetes are described based on the voucher specimens whose chromosome numbers were known. In I. japonica, the hexaploid possessed reticulate megaspores and levigate microspores, while the octaploid and the heptaploid had echinate microspores. Mega- and microspores of the hexaploid and the octaploid were of normal appearance, while those of the heptaploid displayed polymorphism. The tetraploid and the hexaploid of I. sinensis resembled each other, since they both possessed cristate megaspores and echinate microspores. Echinate megaspores and levigate microspores characterized the diploid I. asiatica. The spore size was largely variable within each cytotype, while the size of the megaspores varied more than that of the microspores. The microspore length was closely correlated with polyploid level. In I. sinensis, the mean microspore length of the tetraploid was 27.6 μm while that of the hexaploid was 31.9 μm, hence these two cytotypes were easily distinguishable. In the hexaploid I. japonica, variations in mega- and microspore size displayed geoclinal variation showing a positive correlation (r=0.43-0.55) with the longitude and the latitude of the populations. A palynotogical key for cytotypes is presented.},
	keywords = {Cytotype, Isoetes, Megaspore, Microspore, Palynology, Polyploidy},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030495119\&partnerID=40\&md5=def6cedc48f4ad43b95e6e4eb0cbc75e},
	author = {Watanabe, M. and Takamiya, M. and Matsusaka, T. and Ono, K.}
}
@article {142,
	title = {Biosystematic studies on the genus Isoetes in Japan I. Variations of the somatic chromosome numbers},
	journal = {Journal of Plant Research},
	volume = {107},
	year = {1994},
	note = {Cited By (since 1996):17Export Date: 11 November 2013Source: Scopus},
	month = {1994///},
	pages = {289 - 297},
	abstract = {The somatic chromosome number of three Japanese species of Isoetes, I. asiatica, I. japonica and I. sinensis, was determined in 199 individuals from 49 populations. The chromosome number of I. asiatica was 2 n=22, confirming previous reports. However, I. japonica and I. sinensis displayed a diversity in chromosome number. Six cytotypes, 2 n=66, 67, 77, 87, 88 and 89, were found in I. japonica; 2 n=67, 87, 88 and 89 are new counts in the genus Isoetes. The plants with 2 n=66 were the most frequent (72\% of total individuals examined) and were distributed throughout Honshu and Shikoku. The plants with 2 n=88 occurred in western Honshu and a limited region in northeastern Honshu where the plants with 2 n=77 were also found. In contrast, four cytotypes, 2 n=44, 65, 66 and 68, were found in I. sinensis. The chromosome numbers of I. sinensis were reported here for the first time. The plants with 2 n=44 occurred only in Kyushu, while the plants with 2 n=66 were found throughout a large area of western Japan. {\textcopyright} 1994 The Botanical Society of Japan.},
	keywords = {Aneuploid, Chromosome number, Cytogeography, Isoetes, Polyploid, Pteridophyta},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-21844512580\&partnerID=40\&md5=5cb0d06bc24499fb20d76da2946e91ea},
	author = {Takamiya, M. and Watanabe, M. and Ono, K.}
}
@article {146,
	title = {Microtubule arrays during mitosis in monoplastidic root tip cells of Isoetes},
	journal = {Protoplasma},
	volume = {167},
	year = {1992},
	note = {Cited By (since 1996):4Export Date: 11 November 2013Source: Scopus},
	month = {1992///},
	pages = {123 - 133},
	abstract = {Mitosis in monoplastidic root tip cells of Isoetes was studied by fluorescence (confocal laser scanning microscopy) and transmission electron microscopy. The two major components of division polarity, spindle axis and division site, are established more or less simultaneously in preprophase. Morphogenetic plastid migration results in positioning of a daughter plastid at each pole of the future spindle. Concomitant with establishment of the spindle axis, the division site is marked by a girdling band of mirotubules (preprophase band). Endoplasmic microtubules interconnect the polar plastids and preprophase band suggesting a mechanism for communication and final alignment of spindle axis and division site. As in other monoplastidic cells, the spindle appears to emanate from the plastids. In telophase, the focus of microtubules shifts to the reforming nuclei as the phragmoplast is initiated. Microtubules which continue to emanate from plastids are incorporated into the phragmoplast as it expands beyond the interzonal region. Cortical microtubules are restored in a random fashion before assuming a transverse arrangement in interphase. {\textcopyright} 1992 Springer-Verlag.},
	keywords = {Confocal, Isoetes, Microtubule, Mitosis, Monoplastidy, Plastid},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0000314665\&partnerID=40\&md5=9574acecdc52183ede5fc00cd7f20758},
	author = {Cleary, A.L. and Brown, R.C. and Lemmon, B.E.}
}
@article {119,
	title = {Fungal associations in the roots of three species of Isoetes L.},
	journal = {Aquatic Botany},
	volume = {61},
	year = {1998},
	note = {Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {33 - 37},
	abstract = {A fungal association has been described in the roots of three species of lsoetes which flourish during the rainy season in Rajasthan (India). The mycelium is septate, branched and forms bunches of intracellular hyphae in cortical cells of young roots. The association is symbiotic and is not influenced by habitat, i.e. while the host plant is aquatic, amphibious or terrestrial. This is the first report of a fungal association with the roots of the taxon Isoetes.},
	keywords = {Association, Fungi, Isoetes, Roots},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032078046\&partnerID=40\&md5=889c7296fb92f9ff06715d43eac6d16b},
	author = {Sharma, B.D.}
}
@article {102,
	title = {Isoetes mattaponica (Isoetaceae), a new diploid quillwort from freshwater tidal marshes of Virginia},
	journal = {Novon},
	volume = {11},
	year = {2001},
	note = {Cited By (since 1996):2Export Date: 11 November 2013Source: Scopus},
	month = {2001///},
	pages = {200 - 204},
	abstract = {Isoetes mattaponica is a rare quillwort of freshwater tidal rivers of eastern Virginia with a somatic chromosome number of 2n = 22. Megaspores have low regulate muri on both the proximal and distal surfaces; the girdle is broad. Microspores are echinate-spinose with ornamented spines. Isoetes mattaponica may be one of the parents of several polyploids in the Southeastern United States.},
	keywords = {Isoetaceae, Isoetes, North America, Quillwort, United States, Virginia},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034905622\&partnerID=40\&md5=0a918d8dca0158c2b1216f1b1f080cd0},
	author = {Musselman, L.J. and Taylor, W.C. and Bray, R.D.}
}
@article {103,
	title = {Basal meristem and root development in Isoetes asiatica and Isoetes japonica},
	journal = {International Journal of Plant Sciences},
	volume = {162},
	year = {2001},
	note = {Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus},
	month = {2001///},
	pages = {1225 - 1235},
	abstract = {We studied the anatomy of the basal meristem and root development in Isoetes asiatica and Isoetes japonica to better understand the Isoetes rhizomorph, an enigmatic organ. The basal (root-producing) meristem of the rhizomorph is continuous with the lateral meristem, and both comprise a single meristem. The basal meristem with a layer of thin initials has both organogenetic and thickening meristem attributes. A combination of these attributes indicates that the basal meristem is distinctive among the vascular plant meristems, including cambium. The root primordia develop from young derivative cells organized in three to four radial fines, and their main body is composed of a three-layered apical meristem. The primordia, unlike the roots, produce a small number of derivative cells as well as a procambium and future root cap, and they do not form a cortex and epidermis. Prior to developing into roots, the primordia are shifted closer to the corm surface through further development of cortical tissues from the basal meristem and sloughing of surface cells. This unique developmental pattern is established through the subendogenous origin of the second embryonic root and the endogenous origin of the third root. The meristem and pattern of root development in Isoetes is compared with that indicated for the lepidodendrid and isoetalean rhizomorphs and contrasted with that in the Selaginella rhizophore. The comparison seems not to support the interpretation of the roots as leaf homologues.},
	keywords = {Cambium, Development, Isoetes, Lepidodendrids, Meristem, Rhizomorph, Rhizophore, Root},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0034749638\&partnerID=40\&md5=1887916a18c476c09780d6d6ad7f78b6},
	author = {Yi, S.-Y. and Kato, M.}
}
@article {105,
	title = {Isoetes sinensis var. Sinensis in Korea (Isoetaceae: Pteridophyta)},
	journal = {Fern Gazette},
	volume = {16},
	year = {2000},
	note = {Cited By (since 1996):7Export Date: 11 November 2013Source: Scopus},
	month = {2000///},
	pages = {169 - 177},
	abstract = {Quillworts recently collected from a population on Cheju Island, South Korea, are tetraploid (2n = 44 = 22II) and have cristate megaspores and echinate microspores. Based on these characters, the specimens are identified as Isoetes sinensis var. sinensis, a globally rare taxon previously unreported in Korea. The apparently close taxonomic relationship between Korean I. sinensis var. sinensis and the basic diploid I. taiwanensis suggests that further phylogenetic investigation is warranted.},
	keywords = {Chromosome, Isoetes, Korea, Spore},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0039174448\&partnerID=40\&md5=8986e80438e25ba35955cf46aa7ed4f7},
	author = {Takamiya, M.}
}
@article {115,
	title = {Studies on Annalepis from Middle Triassic along the Yangtze river and its bearing on the origin of Iso{\"e}tes},
	journal = {Acta Botanica Sinica},
	volume = {40},
	year = {1998},
	note = {Cited By (since 1996):6Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {768 - 774},
	abstract = {Specimens of Annalepis have been found from the Middle Triassic Series in the Yangtze River valley and described, including a new species. Annalepis is similar to the living plant, Iso{\"e}tes , in many aspects, such as the herb with a corm, more or less clustering sporophylls, presence of a ligule, monolete suture microspores of Aratrisporites -type and trilete megaspores, etc. The similarities of features between the two plants indicate their close affinities and that A . brevicystis might be the ancestry of Iso{\"e}tes . Since there is a ligule on the sporophyll of Pleuromeia, the Pleuromeiaceae represented by Pleuromeia could be allied to the Iso{\"e}taceae, and both families should belong to Iso{\"e}tales. Iso{\"e}tales represents a distinct evolutionary sequence and is inferred as being evolved probably from Palaeozoic Sigillaria . In Mesozoic age, two evolutionary lines are proposed: one as a line from Pleuromeia to Nathorstiana in relation to wood-monopolar rhizophore; the other as a line from Annalenis to Iso{\"e}tes related to herb-bipolar corm. Annalepis appeared almost simultaneously in the Yangtze River valley in early Middle Triassic, but the distribution of Annalepis was concentrated from east to west during middle-late Middle Triassic, in relation to the marine regression which occurred cyclically from east to west on the Yangtze Platform during that time.},
	keywords = {Annalepis, Evolution, Isoetes, Middle Triassic, Origin, Yangtze river valley},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032414084\&partnerID=40\&md5=b6306b3189c6672809b1bab17e2dd168},
	author = {Meng, F.-S.}
}
@article {117,
	title = {Anatomy of scales and phyllopodia of Isoetes of Rajasthan},
	journal = {Phytomorphology: An International Journal of Plant Morphology},
	volume = {48},
	year = {1998},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {269 - 272},
	abstract = {Anatomy of scales and phyllopodia of the four species of Isoetes found in Rajasthan was studied. The shapes triangular to bonnet and sizes of scales and phyllopodia vary with species; 3-12 mm {\texttimes} 2-9 mm in size, parenchymatous and have intermingled roots, sporangia, spores, fungal hyphae and fruiting bodies.},
	keywords = {Anatomy, Isoetes, Phyllopodia, Rajasthan, Scales},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-1542573923\&partnerID=40\&md5=d37103324e9fa9109d8eeb159846560c},
	author = {Sharma, B.D.}
}
@article {90,
	title = {Isoetes (isoetaceae), Ophioglossum and Botrychium (ophioglossaceae) in Calabria (S Italy): More karyological and taxonomical data},
	journal = {Caryologia},
	volume = {56},
	year = {2003},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2003///},
	pages = {359 - 363},
	abstract = {I. subinermis (Durieu) Cesca and Peruzzi, from a newly discovered Calabrian stand, was karyologically studied. Both chromosome number (2n = 22) and karyotype are presented. Systematic distinctiveness of I. subinermis from I. histrix Bory is confirmed. A new chromosome complement (2n = 44) is recorded for I. duriei Bory, confirming the karyological variability of this taxon. Ophioglossum lusitanicum L. (n = 120) and Botrychium lunaria L. (2n = 90) were karyologically studied too. Their chromosome numbers are reported as the first counts on Italian populations.},
	keywords = {Botrychium, Isoetes, Karyology, Ophioglossum, taxonomy},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77949731523\&partnerID=40\&md5=40e99c3e1ecb2fbbe5af20ec7f017177},
	author = {Peruzzi, L. and Cesca, G. and Puntillo, D.}
}
@article {92,
	title = {Isoetes toximontana (Isoetaceae), a new quillwort with green megaspores from the Northern Cape of South Africa},
	journal = {Novon},
	volume = {12},
	year = {2002},
	note = {Cited By (since 1996):4Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {504 - 507},
	abstract = {Isoetes toximontana is only the second quillwort reported from the Northern Cape region in South Africa. It occurs in shallow water on the Gifberg. Megaspores are uniformly tuberculate on the proximal surface; their distal surfaces may have occasional rugi along with bullae. They are olive green when dry. Microspores are brown and aculeate. Preliminary field studies suggest that an unexpected diversity of quillworts is found in this region.},
	keywords = {Gifberg, Isoetaceae, Isoetes, Northern Cape Province, Quillwort, South Africa},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036936160\&partnerID=40\&md5=345c74b24b350ea1ea344891e16d8c71},
	author = {Musselman, L.J. and Roux, J.P.}
}
@article {93,
	title = {Isoetes yunguiensis (Isoetaceae), a new basic diploid quillwort from China},
	journal = {Novon},
	volume = {12},
	year = {2002},
	note = {Cited By (since 1996):15Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {587 - 591},
	abstract = {Isoetes yunguiensis, a basic diploid species with a chromosome number of 2n = 22, is described and illustrated. This species occurs on the Yunnan-Guizhou Plateau in southwest China. It is similar to I. japonica in its appearance and emergent aquatic habit. Herbarium specimens of I. yunguiensis previously have been misidentified as I. japonica. Isoetes yunguiensis differs from I. japonica in megaspore and microspore morphology and chromosome number.},
	keywords = {China, East Asia, Isoetaceae, Isoetes, Quillwort, Yunnan-Guizhou Plateau},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036939584\&partnerID=40\&md5=da8d4d4668c03846b51b3df5877e8602},
	author = {Wang, Q.-F. and Liu, X. and Taylor, W.C. and He, Z.-R.}
}
@article {96,
	title = {Phylogeny of Iso{\"e}tes (Lycopsida): Resolving basal relationships using rbcL sequences},
	journal = {Taxon},
	volume = {51},
	year = {2002},
	note = {Cited By (since 1996):20Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {83 - 89},
	abstract = {The phylogenetic relationships of Iso{\"e}tes (Iso{\"e}taceae) were investigated by means of a cladistic analysis using plastid rbcL sequences and a representative sample of 18 species. The analysis supports a basal split in Iso{\"e}tes separating two main groups, one including aquatic species from South America (I. bradei and I. amazonica) and West Africa (I. kersii and I. schweinfurthii), and the other including aquatic, amphibious and terrestrial species representing all major continents. Higher level relationships remain unresolved, but supported groups do conflict with previous morphology-based hypotheses. Comparatively low levels of sequence divergence indicate that the use of more rapidly evolving regions will be required to resolve higher level relationships. The phylogenetically isolated nature of Iso{\"e}tes will in such analyses make standard outgroup comparisons problematic, and results presented here will in this respect prove important by providing support for choosing among alternative rooting options.},
	keywords = {Isoetaceae, Isoetes, Phylogeny, rbcL},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036254372\&partnerID=40\&md5=f4c2dc2699e8c72b00c4dccdb1f20c1f},
	author = {Rydin, C. and Wikstr{\"o}m, N.}
}
@article {84,
	title = {Revealing unknown or extinct lineages within Iso{\"e}tes (Iso{\"e}taceae) using DNA sequences from hybrids},
	journal = {American Journal of Botany},
	volume = {91},
	year = {2004},
	note = {Cited By (since 1996):25Export Date: 11 November 2013Source: Scopus},
	month = {2004///},
	pages = {899 - 904},
	abstract = {Iso{\"e}tes, a heterosporous lycopod with a fossil record dating back to the Paleozoic, has numerous putative allopolyploids (resulting from hybridization events coupled with doubling of chromosome number). By using the highly variable nucleotide sequences from the second intron of a LFY homologue in Iso{\"e}tes, species could be delimited and hybrid origins determined. The data suggest that reticulate evolution is both common and complex within a more derived species complex of Iso{\"e}tes. Sequences of identifiable parentage and sequences that are unlike any diploid species known were recovered, leading to the conclusion that one or both of the putative parents have not yet been discovered or are extinct. A range of observations concerning allopolyploid speciation were categorized as follows: (1) verification of previous hypotheses regarding parentage (e.g., I. riparia, I. appalachiana), (2) determination that two morphologically distinct allotetraploid species can share the same parentage (I. azorica and I. acadiensis), (3) recognition of a cryptic allotetraploid species, indicated by the presence of different parental genomes (I. "appalachiana" from Florida), and (4) identification of allotetraploid species with one or two unknown parents (e.g., I. tuckermanii, I. acadiensis, I. azorica, and I. hyemalis). Some sequences from diploid species are remarkably uniform among populations (e.g., I. echinospora from various locations in North America, Iceland, and Wales), while others are variable at the subspecies level (e.g., northern and southern populations within I. engelmannii).},
	keywords = {Allopolyploidy, Hybrid origins, Isoetes, LEAFY intron},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-11444256350\&partnerID=40\&md5=420a4ad06820ce82f60d7a70e7db9dec},
	author = {Hoot, S.B. and Napier, N.S. and Taylor, W.C.}
}
@article {75,
	title = {Analysis of morphological and anatomical characteristics of Isoetes using isoetes tennesseensis},
	journal = {Brittonia},
	volume = {57},
	year = {2005},
	note = {Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus},
	month = {2005///},
	pages = {167 - 182},
	abstract = {The three known populations of Isoetes tennesseensis were examined to document and analyze their morphological and anatomical characters. Characters examined included velum coverage, lacunae, leaf form and size, sporangial wall cells, and ligule and labium morphology. Three types of morphological patterns were found: stable, variable, and dimorphic. The discovery of dimorphism between mega- and microsporophylls for velum coverage, velum length, sporangium size, and ligule shape is of particular interest. This study presents a model for future work designed to complement current species descriptions and it establishes a baseline for morphological comparisons with other Isoetes. {\textcopyright} 2005, by The New York Botanical Garden Press.},
	keywords = {Dimorphism, Isoetes, Lycopod, Morphological characters, Pteridophyte},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-21744447722\&partnerID=40\&md5=10d5e4181461bf404f341ea4a32c4740},
	author = {Budke, J.M. and Hickey, R.J. and Heafner, K.D.}
}
@book {59,
	title = {Phylogeny and biogeography of Iso{\"e}tes (Iso{\"e}taceae) based on nuclear and chloroplast DNA sequence data},
	series = {Systematic Botany},
	volume = {31},
	year = {2006},
	note = {Cited By (since 1996):14Export Date: 11 November 2013Source: Scopus},
	month = {2006///},
	pages = {449 - 460},
	abstract = {Despite its ancient origins, worldwide distribution, and adaptation to diverse habitats, Iso{\"e}tes species have a highly conserved morphology, making it difficult to resolve phylogenetic relationships using morphological characters. In this paper, we report the results from various analyses (maximum parsimony, maximum likelihood, and Bayesian inference) for Iso{\"e}tes species from around the world based on nucleotide sequences from the nuclear internal transcribed spacer (ITS) and chloroplast atpB/rbcL intergenic spacer regions. The trees resulting from our analyses of the combined data contain six major well-supported clades (bootstrap >= 90\%, posterior probabilities = 1.00): A clade with possible Gondwanan affinities (I. australis, I. coromandelina, I. panamensis, I. cubana, I. jamaicensis); a South African clade (I. capensis, I. toximontana, I. stellenbossiensis, I. stephansenii); a largely Northern Hemisphere clade (I. nuttallii, I. orcuttii, I. minima, I. dixitei, I. abyssinica, I. olympica, I. longissima, I. velata); an Asian/Australasian clade (I. drummondii, I. gunnii, I. pusilla, I. kirkii, I. muelleri, I. taiwanensis, I. japonica, I. yunguiensis, I. habbemensis); a Mediterranean clade (I. histrix and I. setacea); and a poorly resolved clade consisting of 12 new world species (American species complex). Our results are compared to past classifications and various biogeographical scenarios are explored. {\textcopyright} Copyright 2006 by the American Society of Plant Taxonomists.},
	keywords = {Biogeography, Isoetaceae, Isoetes, Phylogeny},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-67650146436\&partnerID=40\&md5=c418d4b55db9dd7f2436a8d3189f1552},
	author = {Hoot, S.B. and Taylor, W.C. and Napier, N.S.}
}
@article {60,
	title = {Inferring the root of Iso{\"e}tes: Exploring alternatives in the absence of an acceptable outgroup},
	journal = {Systematic Botany},
	volume = {31},
	year = {2006},
	note = {Cited By (since 1996):11Export Date: 11 November 2013Source: Scopus},
	month = {2006///},
	pages = {258 - 270},
	abstract = {The ancient divergence between the lycopsid genus Iso{\"e}tes and its closest living relative (Selaginella) has resulted in considerable morphological and genetic disparity, yet within Iso{\"e}tes there is remarkable morphological and genetic uniformity. This has made it difficult to identify the phylogenetic root of the genus. In this study, we addressed this problem and characterized the early branching patterns within Iso{\"e}tes using an expanded set of taxa and three molecular markers. We assessed the saturation in the molecular data sets, tested for differences in evolutionary rate, determined the stability of the ingroup topology, and evaluated the applicability of the molecular clock. We then explored three alternative rooting approaches: outgroup, midpoint, and maximum likelihood under the assumption of a molecular clock. Attempts to infer the root of Iso{\"e}tes using the outgroup approach were severely hindered by the effects of saturation, but the results from midpoint rooting and the enforcement of the molecular clock were highly consistent among the data sets. We identify the root of Iso{\"e}tes to be located among three major, highly supported clades. {\textcopyright} Copyright 2006 by the American Society of Plant Taxonomists.},
	keywords = {Isoetaceae, Isoetes, Lycophyte, Midpoint rooting, Phylogenetic root, Relative rate comparisons},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33745493624\&partnerID=40\&md5=8d3abb9eb77572545e97747f1aaf51a5},
	author = {Schuettpelz, E. and Hoot, S.B.}
}
@article {49,
	title = {Two new species of Isoetes (Isoetaceae) from Jeju Island, South Korea},
	journal = {Journal of Plant Biology},
	volume = {51},
	year = {2008},
	note = {Cited By (since 1996):5Export Date: 11 November 2013Source: Scopus},
	month = {2008///},
	pages = {354 - 358},
	abstract = {We name and describe two new species, Isoetes jejuensis and I. hallasanensis, from Jeju Island, South Korea. These taxa are compared with related species in East Asia, including I. coreana and I. sinensis. The rugulate megaspore ornamentation of I. jejuensis differs from those other Isoetes species. Furthermore, I. hallasanensis varies from I. asiatica in its microspore ornamentation and chromosome number, although both species have an echinate megaspore ornamentation. These new species are tetraploid (2n = 44), whereas I. coreana is hexaploid (2n = 66).},
	keywords = {Isoetes, Isoetes hallasanensis, Isoetes jejuensis, Jeju Island, New species},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-54249107417\&partnerID=40\&md5=b04955ae3773d8cafcac8c63a3879137},
	author = {Choi, H.-K. and Jung, J. and Kim, C.}
}
@article {50,
	title = {Spore morphology of Iso{\"e}tes (iso{\"e}taceae) from China},
	journal = {Journal of Systematics and Evolution},
	volume = {46},
	year = {2008},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2008///},
	pages = {479 - 489},
	abstract = {Micromorphological characters of mega- and microspores of five Iso{\"e}tes species from China were observed under scanning electron microscope (SEM). Megaspores of I. hypsophila have a levigate ornamentation, and are 358 μm in diameter (mean, n=30), microspores of this species have a gyrus ornamentation, and are 22 μm in length (mean, n=30); megaspores of I. yunguiensis have a cristate-reticulate ornamentation, with a size of 390 μm in diameter (mean, n=30), while microspores nearly smooth with some fine granulates, and with a size of 22 gm in length (mean, n=30); megaspores of I. taiwanensis are tuberculate and 312 μm in diameter (mean, n=30), echinate microspores are 24 μm in length (mean, n=30); cristate megaspores of I. sinensis are 409 μm in diameter (mean, n=30), and echinate microspores are 28 μm in length (mean, n=30); megaspores of I. orientalis have a cristate-reticulate ornamentation, with diameter of 420 μm (mean, n=30), microspores of this species have an echinate-tuberculate ornamentation with a size of 34 μm in length (mean, n=30). Based on the morphological characters of spores and chromosome numbers among taxa, it was found that mean spore size in each species of Iso{\"e}tes generally reflected the ploidy level. I. hypsophila, I. yunguiensis and I. taiwanensis, with smaller mean spore size, are diploidy with 2n=22; I. sinensis (2n=44) and I. orientalis (2n=66), with larger mean spore size, are polyploidy. The spore morphology of Iso{\"e}tes still plays an important role in identification and classification of Iso{\"e}tes from China.},
	keywords = {China, Evolution, Isoetes, Origin, Spore morphology},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-57349117891\&partnerID=40\&md5=f310ff0165e440259efb4b7c64314743},
	author = {Liu, X. and Liu, H. and Wang, Q.-F.}
}
@article {55,
	title = {Isoetes araucaniana, a new species from southern South America},
	journal = {American Fern Journal},
	volume = {97},
	year = {2007},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2007///},
	pages = {220 - 224},
	abstract = {Isoetes araucaniana is newly described from central Chile. This aquatic species is endemic to Araucan{\'\i}a and is the only southern Andean species with strongly and densely reticulate megaspores.},
	keywords = {Isoetes, New species, South America},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-39449094567\&partnerID=40\&md5=187a92568719c2772ed711b49957998d},
	author = {MacLuf, C.C. and Hickey, R.J.}
}
@article {56,
	title = {Foliar diagnostic characters in Isoetes (Pteridophyta, Isoetaceae)},
	journal = {Caracteres diagn{\'o}sticos foliares en Isoetes (Pteridophyta, Isoetaceae)Annals of the Missouri Botanical Garden},
	volume = {94},
	year = {2007},
	note = {Cited By (since 1996):6Export Date: 11 November 2013Source: Scopus},
	month = {2007///},
	pages = {202 - 235},
	abstract = {Foliar characters were studied in 25 European, North African, North American, and South American terrestrial, amphibious, and aquatic: taxa of the genus Isoetes L. (Pteridophyta, Isoctaceae). The foliar characters investigated have a variable diagnostic value. The presence and types of cuticular ornamentations, types of margins, epidermal patterns and cell ratios of the epidermis, types of IPP (intercellular peetic protuberances) in the cells of the leaf diaphragms, epidermal patterns and cell ratios of velum, epidermal patterns, and nature of walls in the adaxial epidermis of sporangia may be good diagnostic specific characters that should be included in taxonomic descriptions. Transverse sections of the microphylls, the types and distribution of collenchyma (fascicular, lacunar, or partially laminar collenchyma, with the latter two types described here for the first time), the cell types of leaf diaphragms, the presence of IPP in these cells, the partial or complete endodermis in the air chambers, and the presence of a persistent mucilage-secreting or an early lignified ligule are features that characterize species groups in Isoetes. The mucilage-secreting ligula and the types of endodermis can be considered as generic traits in Isoetes. The genus was hugely considered as lacking good diagnostic characters or having rather environmentally influenced traits, two concepts that are discussed here after presentation of the new evidence.},
	keywords = {Epidermis, Foliar diagnostic characters, Isoetes, Labium, Ligula, Microphylls, Sporangial adaxial wall, Velum},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34248570912\&partnerID=40\&md5=aa7a39e226168462b49230d818ab3991},
	author = {Rolleri, C.H. and Prada, C.}
}
@article {57,
	title = {Genetic diversity in Isoetes yunguiensis, a rare and endangered endemic fern in China},
	journal = {Frontiers of Biology in China},
	volume = {2},
	year = {2007},
	note = {Cited By (since 1996):6Export Date: 11 November 2013Source: Scopus},
	month = {2007///},
	pages = {46 - 49},
	abstract = {Isoetes yunguiensis is an endangered and endemic fern in China. Field survey indicated that only one population and no more than 50 individuals occur in the wild. The genetic variation of 46 individuals from the population remaining at Pingba (Guizhou Province, China) was assessed by Random Amplified Polymorphic DNA (RAPD) finger-printing. Twelve primers were screened from sixty ten-bp arbitrary primers, and a total of 95 DNA fragments were scored. Of these, 62.1\% were polymorphic loci, which indicated that high level genetic variation existed in the natural population. The accumulation of genetic variation in the history of the taxon and the apparent minimal reduction effect on genetic diversity following destruction of habitat might be responsible for the high level genetic diversity presently remaining in the I. yunguiensis population. However, with the continuing decrease of population size, the genetic diversity will gradually be lost. We suggest that the materials from the extant population should be used for re-establishment of the populations. {\textcopyright} 2007 Higher Education Press and Springer-Verlag.},
	keywords = {Endemic fern, Genetic diversity, Isoetes, Random amplified polymorphic DNA (RAPD), Rare and endangered},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33847396236\&partnerID=40\&md5=ee6f56a9a5fcf2d93d7218f43862d556},
	author = {Chen, J. and Gituru, W.R. and Liu, X. and Wang, Q.}
}
@article {38,
	title = {Systematic evaluation of iso{\"e}tes asiatica makino (iso{\"e}taceae) based on AFLP, nrITS, and chloroplast DNA sequences},
	journal = {Journal of Plant Biology},
	volume = {52},
	year = {2009},
	note = {Cited By (since 1996):2Export Date: 11 November 2013Source: Scopus},
	month = {2009///},
	pages = {501 - 510},
	abstract = {On the basis of amplified fragment length polymorphism (AFLP) and nucleotide sequence data from nuclear ribosomal internal transcribed spacer (nrITS) and three chloroplast DNA regions (rbcL, cpITS, and trnS-psbC spacer), we investigated the species delimitation and the evolutionary lineage of Iso{\"e}tes asiatica from Hokkaido, Japan. The neighbor-joining (NJ) dendrogram based on AFLP markers revealed the well-defined clusters (bootstrap value = 100\%) of I. asiatica. Results from the principal component analysis are largely congruent with those obtained in the NJ dendrogram. The maximum parsimony analysis, based on data from nrITS and three chloroplast DNA sequences, supported a monophyly of three species, I. asiatica, Iso{\"e}tes echinospora, and Iso{\"e}tes maritima from Hokkaido, Kamchatka, and Alaska regions. The distinct species status of I. asiatica was also well supported in the combined chloroplast DNA phylogeny. Therefore, I. asiatica appear to represent example of gradual speciation due to spatial isolation of ancestral populations followed by genetic divergence. Our results also suggest that I. asiatica is probably not the ancestral diploid of the polyploids occurring in East Asia. {\textcopyright} The Botanical Society of Korea 2009.},
	keywords = {AFLP, Chloroplast DNA, I. asiatica, Isoetes, Molecular phylogeny, NrITS},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-71249137227\&partnerID=40\&md5=029dcd01eab0eacc2d8c97b3953cb1ba},
	author = {Kim, C. and Na, H.R. and Shin, H. and Choi, H.-K.}
}
@article {45,
	title = {Genetic diversity and population structure of diploid and polyploid species of isoetes in east asia based on amplified fragment length polymorphism markers},
	journal = {International Journal of Plant Sciences},
	volume = {170},
	year = {2009},
	note = {Cited By (since 1996):5Export Date: 11 November 2013Source: Scopus},
	month = {2009///},
	pages = {496 - 504},
	abstract = {Isoetes L. is critically endangered in areas of East Asia, including Taiwan, Japan, and South Korea. The genetic diversity and the population structure of six Isoetes species from East Asia were evaluated by using amplified fragment length polymorphism (AFLP). Three AFLP-selective primer combinations generated a total 923 amplification products, of which 919 (99.6\%) were polymorphic. The levels of genetic diversity of two diploid species (I. taiwanensis [percentage of polymorphic loci (PPL) = 33.1\%-38.3\%] and I. asiatica [PPL = 49.0\%]) are higher than those of polyploid species (tetraploid: I. jejuensis [PPL = 9.3\%-29.3\%] and I. hallasanensis [PPL = 22.3\%]; hexaploid: I. coreana [PPL = 1.6\%-20.6\%] and I. japonica [PPL = 5.6\%-20.5\%]). Higher genetic differentiation was detected for populations of I. coreana (0B = 0.730) than for the diploid species I. taiwanensis (0B = 0.074). In addition, analysis of molecular variance showed that a large proportion (79.8\%) of genetic differentiation existed among population of I. coreana. However, 93.2\% of the total genetic variation was attributed to differentiation within populations of I. taiwanensis. A neighbor-joining dendrogram resulted in three clusters, one for I. asiatica, one for I. japonica, and one for the rest of the species, subdivided into two: (1) I. taiwanensis/I. jejuensis and (2) I. coreana/I. hallasanensis. Furthermore, individuals from each population of I. coreana and I. jejuensis were clustered into population-specific subclusters. The probable causes of the current pattern of genetic variation and population structure are discussed, and suggestions on the future protection of Isoetes species are also given. {\textcopyright} 2009 by The University of Chicago. All rights reserved.},
	keywords = {AFLP, Diploid, Genetic diversity, Isoetes, Polyploid, Population structure},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-67649230633\&partnerID=40\&md5=794650fbe3653559e7cb90004dfa45c6},
	author = {Kim, C. and Shin, H. and Choi, H.-K.}
}
@article {47,
	title = {High allozyme diversity and unidirectional linear migration patterns within a population of tetraploid Isoetes sinensis, a rare and endangered pteridophyte},
	journal = {Aquatic Botany},
	volume = {90},
	year = {2009},
	note = {Cited By (since 1996):7Export Date: 11 November 2013Source: Scopus},
	month = {2009///},
	pages = {52 - 58},
	abstract = {Isoetes sinensis (Isoetaceae), an aquatic quillwort which occurs only in two fragmented sites of China as an allotetraploid, is critically endangered. Genetic variation among eight subpopulations of I. sinensis was examined in the Xin{\textquoteright}an River (119{\textdegree}14'-15'E, 29{\textdegree}28'N) by using allozyme polymorphism. Eighteen loci of 10 enzyme systems were examined and used for the analysis of population genetic parameters. As expected for allotetraploids, fixed heterozygosity was found at four loci. A high level of genetic diversity was observed in the population, with mean number of alleles per loci of 1.8, and mean percentage of polymorphic loci of 55.6\%, which were much higher than the average values in fern species. The genetic variation within each subpopulation was not positively correlated with its size, which may be explained by high gene flow (Nm = 2.57), clonal reproduction and fixed heterozygosity of allopolyploid. The I. sinensis population contained high clonal diversity (PD = 0.39, D = 0.95), indicating the successful seedling recruitment of the population. Significant positive relationship was detected between clonal diversity and the size of subpopulation. Partitioning the genetic diversity indicated that 91.1\% of the genetic variation was within subpopulations and only 8.9\% existed among subpopulations. The migration pattern of I. sinensis along the Xin{\textquoteright}an River is best explained by a source-sink model, but with unidirectional gene flow among subpopulations underlined by hydrochoric force. The results were then discussed in relation to both in situ and ex situ conservation efforts of the population. {\textcopyright} 2008 Elsevier B.V. All rights reserved.},
	keywords = {Allotetraploid, Genetic diversity, Hydrochory, Isoetes, Riparian plant, Unidirectional migration},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-54249105798\&partnerID=40\&md5=962f14606c468408a8b8d98333cd3292},
	author = {Chen, Y.-Y. and Yang, W. and Li, W. and Li, Z.-Z. and Huang, H.-W.}
}
@article {31,
	title = {A new species of Iso{\"e}tes (Iso{\"e}taceae, Pteridophyta) for the Mediterranean},
	journal = {Plant Biosystems},
	volume = {144},
	year = {2010},
	note = {Cited By (since 1996):4Export Date: 11 November 2013Source: Scopus},
	month = {2010///},
	pages = {805 - 813},
	abstract = {Iso{\"e}tes iapygia from the Apulia region (southern Italy) is described as a new species and illustrated. It differs in several characters from the other Mediterranean Iso{\"e}tes species, but has some intermediate characteristics similar to terrestrial and amphibious Iso{\"e}tes. I. iapygia is similar to the amphibious species for the lack of phyllopodia, even if it has scales; it is similar to terrestrial species for the complete velum and tuberculate macrospores. A completely unique character is represented by the two air chambers. Its habitat is on limestone rocks, in temporary pools. {\textcopyright} 2010 Societ{\`a} Botanica Italiana.},
	keywords = {Apulia, Foliar air chambers, Isoetes, Mediterranean temporary pools, Pteridophyta, Velum},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-78650324261\&partnerID=40\&md5=05e52c052516d91aa8ee4d24dd9a8752},
	author = {Ernandes, P. and Beccarisi, L. and Zuccarello, V.}
}
@article {35,
	title = {Isoetes pedersenii, a new species from southern South America},
	journal = {Anais da Academia Brasileira de Ciencias},
	volume = {82},
	year = {2010},
	note = {Cited By (since 1996):2Export Date: 11 November 2013Source: Scopus},
	month = {2010///},
	pages = {353 - 359},
	abstract = {The name Isoetes pedersenii H.P. Fuchs (Lycophyta), a species known only from the Mburucuy{\'a} National Park, Corrientes, Argentina, is validated. Observations were carried out on herbarium material with stereoscopic, light and scanning electron microscopes. The species is described and typified. A diagnosis and discussion about its distribution and its relationship with the morphology of other species of Isoetes are provided.},
	keywords = {Argentina, Corrientes, Isoetes, Lycophyta, New species},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77954205868\&partnerID=40\&md5=110a9d99d9c9596db7ffbf7c893b6b51},
	author = {Macluf, C. and Meza Torres, E.I. and Sol{\'\i}s, S.M.}
}
@article {36,
	title = {Morphology and ultrastructure of megaspores and microspores of isoetes sehnemii fuchs (lycophyta)},
	journal = {Anais da Academia Brasileira de Ciencias},
	volume = {82},
	year = {2010},
	note = {Cited By (since 1996):1Export Date: 11 November 2013Source: Scopus},
	month = {2010///},
	pages = {341 - 352},
	abstract = {The morphology and wall ultrastructure of megaspores and microspores of Isoetes sehnemii that grows in Brazil were analyzed as part of the study of the Isoetaceae present in Southern South America. The observations were performed with light, scanning and transmission electron microscopes. The megaspores are trilete, 350-450μm in equatorial diameter. The surface is reticulate. In section, the sporoderm is 100μm thick including the ornamentation. The wall is composed of a siliceous perispore, which consists of short fused flatten, elements forming a three-dimensional mesh. The exospore has two zones of different structure. The endospore is fibrillar. The microspores are monolete, 21-27μm in equatorial diameter. The sporoderm is composed of a sporopollinic rugulate perispore. A space between the para-exospore and the exospore is evident. The exospore is compact. The endospore is fibrillar. The ultrastructural analysis akes hoologies evident concerning structure and organization of the layers belo the perispore in both spore types. A possible similarity and stability in the ultrustructure of the present spores and fossils could be also inferred. In addition, there would be a correlation among the plant habitat, the spore ornamentation and the geographic distribution.},
	keywords = {Brazil, Isoetes, Lycophyta, Palynology, Sculpture, Spores, Ultrastructure},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77954194457\&partnerID=40\&md5=1434918a400d7fc28cb2b2ec5338958d},
	author = {Macluf, C. and Morbelli, M. and Giudice, G.}
}
@article {21,
	title = {Microsatellite analysis reveals the genetic structure and gene flow of the aquatic quillwort Isoetes sinensis, a critically endangered species in China},
	journal = {Aquatic Botany},
	volume = {96},
	year = {2012},
	note = {Cited By (since 1996):1Export Date: 11 November 2013Source: Scopus},
	month = {2012///},
	pages = {52 - 57},
	abstract = {Isoetes sinensis is a critically endangered aquatic quillwort, occurring in two fragmented sites of China (Xiuning county of Anhui; Jiande county of Zhejiang). During a five-year period (2004-2009), the areas and sizes of the two populations diminished dramatically due to intensive human activities. Genetic structure of the species was investigated using simple sequence repeat makers (SSRs). For seven nuclear microsatellites, high levels of genetic diversity were found within populations (H E=0.324-0.447). Strong genetic differentiation was detected between populations (G ST=0.376), while weak genetic differentiation was found within populations (G ST=0.026-0.080). Notably, in contrast to the source-sink model suggested by previous study (Chen et al., 2009), the migration pattern of I. sinensis along the Xin{\textquoteright}an River is best explained by the linear symmetrical non-adjacent flow model (LSNF), which indicates that intensive human activities of recent years have greatly affected the gene exchange pattern among I. sinensis subpopulations. {\textcopyright} 2011 Elsevier B.V.},
	keywords = {Allotetraploid, Genetic diversity, Isoetes, Migration pattern, Riparian plant, Stepping-stone model},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84855293635\&partnerID=40\&md5=824e647a2989ecda4486a69d98cdaac2},
	author = {Chen, Y.-Y. and Kong, D.-R. and Huang, C.-H. and Xu, Y.-X. and Li, Z.-Z.}
}
@article {22,
	title = {A New Species of Diploid Quillwort (Isoetes, Isoetaceae, Lycophyta) from Lebanon},
	journal = {Novon},
	volume = {21},
	year = {2011},
	note = {Cited By (since 1996):2Export Date: 11 November 2013Source: Scopus},
	month = {2011///},
	pages = {295 - 298},
	abstract = {A new species, Isoetes libanotica Musselman, Bolin \&R. D. Bray (Isoetaceae, Lycophyta), is described from Akkar District of northern Lebanon. It is a seasonal terrestrial species of basaltic soils, diploid (2n = 22), with complete velum coverage. Megaspore diameter ranges from 338 to 477 lm with remote, low tuberculate ornamentation and a low to obsolete equatorial girdle; microspore length ranges from 25 to 30 lm, with echinate ornamentation. At the type locality of I. libanotica, two other Isoetes L. species occur sympatrically. These superficially similar Isoetes species can be differentiated from I. libanotica using megaspore characters; I. duriei Bory has larger alveolate megaspores and I. olympica A. Braun has a prominent equatorial girdle. Copyright {\textcopyright} 2011 BioOne All rights reserved.},
	keywords = {Isoetaceae, Isoetes, IUCN Red List, Lebanon, Lycophyta},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80052645075\&partnerID=40\&md5=5602c6ac47a25c280f5981e0e73b67f3},
	author = {Bolin, J.F. and Bray, R.D. and Musselman, L.J.}
}
@article {12,
	title = {Late pleistocene and holocene history of genus isoetes L. (Lycopodiophyta) in the Western Rhodope Mountains, Bulgaria. New palynological and palaeoecological data},
	journal = {Comptes Rendus de L{\textquoteright}Academie Bulgare des Sciences},
	volume = {65},
	year = {2012},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2012///},
	pages = {1405 - 1410},
	abstract = {The genus Isoetes is represented in Bulgaria by one species I. lacustris L. (lake quillwort). It inhabits the littoral areas of some lakes in the Pirin Mountain range. Fossil records of Isoetes in Bulgaria are very scarce. A new palynological study was conducted on sediments collected from Kupena Mire in the Western Rhodope Mountains. The results indicated that lake quillwort was abundant 30 000 years ago and its growth was associated with the presence of shallow lake basins. The species disappeared from the composition of the local flora as the sedimentation regime changed from lacustrine to marsh after the warming of the climate at the onset of the Holocene. This study confirmed the existence of refugial areas during the last glaciation in the mountains of Southeastern Europe, where a number of glacial relics had survived.},
	keywords = {Bulgaria, Isoetes, Late pleistocene, Refugia, Western rhodopes},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84868586431\&partnerID=40\&md5=4ea4602b4d474115a8b0a8a76884dfc8},
	author = {Lazarova, M. and Ivanov, D. and Bozilova, E. and Tonkov, S. and Snowball, I.}
}
