@article {98,
	title = {The ligule of Isoetes - A prophyllar structure},
	journal = {Phytomorphology: An International Journal of Plant Morphology},
	volume = {52},
	year = {2002},
	note = {Cited By (since 1996):1Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {17 - 22},
	abstract = {Description is given of an early ontogeny of ligule in Isoetes. The flap-like portion of ligule protects young leaf primordium, whereas the basal glossopodium is large, complicated and remain embedded in leaf tissue and functions as a haustorial structure. The ligule is comparable to the prophyll of monocots and ochreole of Equisetum.},
	keywords = {Heterosporous lycopods, Monocots, Ochreole, Ontogeny},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036307457\&partnerID=40\&md5=94d17d926bf76271c184129b9efc27e2},
	author = {Sharma, B.D. and Bohra, D.R.}
}
@article {91,
	title = {The only quillwort (Isoetes olympica A. Braun) in Syria is threatened with extirpation},
	journal = {Fern Gazette},
	volume = {16},
	year = {2002},
	note = {Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {324 - 329},
	abstract = {Isoetes olympica A. Braun in Milne is known from only two sites: Bursa in Turkey and Jebel Druze, a chain of extinct volcanoes in Syria. The approximately 100 plants are the only quillworts in Syria; they face a very uncertain future. Because this plant grows in wetlands, it is threatened with immediate destruction by the unprecedented expansion of irrigated agriculture in this region. Before this resource is lost, data were collected on megaspores, microspores, leaf anatomy, chromosome number, and gene sequences.},
	keywords = {Isoetes olympica, Jebel Arab, Jebel Druze, Syria},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33947590679\&partnerID=40\&md5=5b215cea1b2bc2215b866b24945c27ad},
	author = {Musselman, L.J.}
}
@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 {94,
	title = {Ornamentation of Isoetes (Isoetaceae, Lycophyta) microspores},
	journal = {Botanical Review},
	volume = {68},
	year = {2002},
	note = {Cited By (since 1996):6Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {474 - 487},
	abstract = {More than any other taxonomic character, megaspores have been used in the genus Isoetes (known by the English common name of "quillwort"), despite the fallacy of a single-character taxonomy. Microspores, on the other hand, have been largely neglected in taxonomic schemes. Like megaspores, terms for microspore ornamentation (also known as "sculpturing") have not been standardized. I examined microspore ornamentation, including both macroornamentation and microornamentation, of 52 taxa from Africa, Asia, Australasia, Europe, North America, and South America with the scanning electron microscope. Macroornamentation is discernible with light microscopy; microornamentation requires scanning electron microscopy. Ornately sculptured spores were much more frequent than were laevigate or psilate patterns: 21 taxa had an echinate pattern; 19 had an aculeate pattern; 6 were cristate; 5 were psilate; and 1 was laevigate. The proximal and distal ridges and surfaces may vary in both the type and density of ornamentation, Distinct macroornamentation patterns characterize certain species groups. Microornamentation types include granulate, bacillate, fimbriate, and filamentose: of the microspores I examined, virtually all were partially granulate; 11 were bacillate; 4 were fimbriate; and 1 was filamentose. Based on this limited sampling, species with a higher ploidy level often have larger microspores, but no clear relationship between microspore ornamentation and ploidy level was established, nor were any geographical or ecological trends clear. Like megaspores, microspore ornamentation is strongly convergent. Although microspores are often attached to megaspores, the role of spore ornamentation in coordinated dispersal remains unclear.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0038477121\&partnerID=40\&md5=08737b87419374ccf0b09e2b6b6699d8},
	author = {Musselman, L.J.}
}
@article {95,
	title = {The gametophyte-sporophyte junction in Iso{\"e}tes boliviensis Weber (Iso{\"e}tales, Lycopodiophyta)},
	journal = {Phyton - Annales Rei Botanicae},
	volume = {42},
	year = {2002},
	note = {Cited By (since 1996):8Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {149 - 157},
	abstract = {The gametophyte-sporophyte junction in Iso{\"e}tes boliviensis Weber consists of a sporophytic conical foot embedded in the maternal gametophytic tissue. Both generations are separated by a narrow placental space filled with thin-walled collapsed cells of gametophytic origin. Gametophytic and sporophytic placental cells lack wall ingrowths, or transfer cells. Interdigitation or intermingling of placental cells is not observed. Cell wall ornamentation is restricted to a nacreous thickening of the outermost cell wall of the sporophyte foot. This structure of the gametophyte-sporophyte junction in Iso{\"e}tes boliviensis is different from that of all other pteridophyte groups for which micrographic details are available. This may be interpreted either as a mere reduction as in some Metzgerialean liverworts, or as an adaptation to the mostly aquatic life history, or as a plesiomorphic condition preserved in the extant relict genus Iso{\"e}tes since the divergence of the Iso{\"e}tes-clade as a distinct evolutionary line in the Upper Devonian.},
	keywords = {Anatomy, gametophyte-sporophyte junction, placental space, Electron microscopy, Iso{\"e}tes, Iso{\"e}tales, Lycopodiophyta},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0037194497\&partnerID=40\&md5=27f36bd8e27d399dbabe2259aa15fc21},
	author = {Hilger, H.H. and Weigend, M. and Frey, W.}
}
@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 {97,
	title = {Iso{\"e}tes x herb-wagneri, an interspecific hybrid of I. bolanderi x I. echinospora (Iso{\"e}taceae)},
	journal = {American Fern Journal},
	volume = {92},
	year = {2002},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2002///},
	pages = {161 - 163},
	abstract = {Iso{\"e}tes x herb-wagneri, the interspecific hybrid between Iso{\"e}tes bolanderi and I. echinospora, is described. The epithet commemorates Warren (Herb) Wagner for the direction and help he provided to the author.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036555158\&partnerID=40\&md5=5756ed478e1a0ae4b05b7f08209f0c5d},
	author = {Taylor, W.C.}
}
