@article {135,
	title = {Isoetes x bruntonii (Isoetes engelmannii x I. hyemalis), a New Hybrid Quillwort from Virginia},
	journal = {American Fern Journal},
	volume = {86},
	year = {1996},
	note = {Cited By (since 1996):5Export Date: 11 November 2013Source: Scopus},
	month = {1996///},
	pages = {8 - 15},
	abstract = {Isoetes xbruntonii is the hybrid between the diploid I. engelmannii (2n = 22) and the tetraploid I. hyemalis (2n = 44). An apparently sterile triploid (2n = 33), it has megaspore features intermediate between the two parents, but does not exhibit hybrid vigor. Isoetes xbruntonii is frequent at localities in the outer Coastal Plain of Virginia.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-1542605410\&partnerID=40\&md5=9808bd7a43d7b9c4a26e1180bb00b3ce},
	author = {Musselman, L.J. and Bray, R.D. and Knepper, D.A.}
}
@article {124,
	title = {Isoetes x carltaylorii (Isoetes acadiensis x Isoetes engelmannii), a new interspecific quillwort hybrid from the Chesapeake Bay},
	journal = {Canadian Journal of Botany},
	volume = {75},
	year = {1997},
	note = {Cited By (since 1996):5Export Date: 11 November 2013Source: Scopus},
	month = {1997///},
	pages = {301 - 309},
	abstract = {Isoetes acadiensis Kott is a plant of the Maritime provinces of Canada and the northeastern United States. In the Chesapeake Bay region, this quillwort has previously ben misidentified as Isoetes riparia Engelm., Isoetes saccharata Engelm., or Isoetes saccharata var. reticulata A.A. Eaton, Isoetes x carltaylorii hyb. nov. is the hybrid between I. acadiensis (2 = 44) and Isoetes engelmannii A. Braun (2n = 22). This is the first report of a hybrid with I. acadiensis. An apparently sterile triploid (2n = 33), this rate plant of freshwater tidal marshes has the predicted range of sizes and megaspore features of a hybrid. This brings to 14 the number of interspecific quillwort hybrids described from North America since 1985.},
	keywords = {Isoetes riparia, Isoetes saccharata, Isoetes saccharata var. reticulata, Megaspores, tidal freshwater rivers},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030617837\&partnerID=40\&md5=7b586defd299685d84514045c5efee0d},
	author = {Musselman, L.J. and Bray, R.D. and Knepper, D.A.}
}
@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 {69,
	title = {Taxonomic reassessment of North American granite outcrop Isoetes species with emphasis on vegetative morphology and I. Piedmontana (Pfeiffer) reed sensu lato},
	journal = {Castanea},
	volume = {70},
	year = {2005},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2005///},
	pages = {204 - 221},
	abstract = {A taxonomic study of collections previously identified as Isoetes melanospora, I. piedmontana, and I. tegetiformans was undertaken emphasizing vegetative characters. The taxonomic position of I. piedmontana was also assessed using cytogeography and a cursory examination of the allozyme locus TPI-2. Isoetes melanospora, I. piedmontana, and I. tegetiformans can be sufficiently distinguished using characters derived from leaves and corms. Isoetes piedmontana occurs as diploid, triploid, and allotetraploid entities. Diploids in the western and eastern parts of the geographic range are genetically distinct. Allotetraploids in eastern Alabama are composed of different genomes than those in North Carolina. Isoetes piedmontana is currently interpreted as an assemblage of morphologically indistinguishable species and is undergoing further taxonomic investigation. The typification of I. piedmontana is clarified, and a key with descriptions of the granite outcrop Isoetes species of the southeastern United States Piedmont is provided.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-26844507369\&partnerID=40\&md5=bf4117785fa3f8ff3d4bb96bd79adbc3},
	author = {Heafner, K.D. and Bray, R.D.}
}
@article {48,
	title = {The genus Isoetes L. (Isoetaceae, Lycophyta) in South-Western Asia},
	journal = {G{\"u}neybati{dotless} Asya{\textquoteright}daki Isoetes L. (Isoetaceae, Lycophyta) cinsiTurkish Journal of Botany},
	volume = {32},
	year = {2008},
	note = {Cited By (since 1996):6Export Date: 11 November 2013Source: Scopus},
	month = {2008///},
	pages = {447 - 457},
	abstract = {Quillworts or {\c C}im Eǧreltisi, species of the genus Isoetes L. in Turkey and the Levant, are poorly studied despite extensive floristic studies in the region. The Flora of Turkey lists 4 taxa: Isoetes olympica A.Braun (2n = 22), I. histrix Bory var. histrix (2n = 20), I. subinermis (Bory) Cesca \& Peruzzi [=I. histrix Bory var. subinermis Durieu (2n = 22)] and I. duriei Bory (2n = ca. 121). An additional species, I. anatolica Prada \& Rolleri, was described in 2005 from Bolu province, and we report the first count for this species, 2n = 22. In Syria and Lebanon 2 species are known: I. olympica from a site in Syria and a known but undescribed plant from Akkar province (Lebanon) and adjacent Syria (2n = 22, first count). A preliminary molecular phylogeny for these species is presented; their distribution and cytology are discussed. The taxonomy and nomenclature of the I. histrix and I. duriei groups need considerable further study. The first hybrids for the region are documented. {\textcopyright} T{\"U}B{\.I}TAK.},
	keywords = {Chromosome counts, {\c C}im eǧreltisi, Lebanon, Megaspores, Molecular phylogeny, Quillworts, Syria, Turkey},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77950205998\&partnerID=40\&md5=4a115f97b98f68919f0545844f4df99d},
	author = {Bolin, J.F. and Bray, R.D. and Keskin, M. and Musselman, L.J.}
}
@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 {23,
	title = {Microspore wall morphogenesis of isoetes piedmontana (pfeiffer) reed},
	journal = {International Journal of Plant Sciences},
	volume = {172},
	year = {2011},
	note = {Cited By (since 1996):1Export Date: 11 November 2013Source: Scopus},
	month = {2011///},
	pages = {856 - 861},
	abstract = {Microspore wall morphogenesis of Isoetes piedmontana was studied with SEM and TEM. The microspore wall consists of four layers: Perispore, paraexospore, exospore, and endospore. Immediately after meiosis, the paraexospore forms around the microspore. The exospore forms next between the cell membrane and the paraexospore. Finally, the perispore is deposited on the paraexospore, and the endospore is formed within the exospore. The paraexospore, exospore, and endospore are largely derived from the cytoplasm of the microspore. The sporopollenin materials of the perispore are derived from the secretory tapetal cells along the inner sporangial wall. {\textcopyright} 2011 by The University of Chicago. All rights reserved.},
	keywords = {Endospore, exospore, Lycophyta, Microspores, Paraexospore, perispore},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84860412528\&partnerID=40\&md5=f17f8f91543e8f1bcb906784afc23b4c},
	author = {Al-Arid, K. and Bray, R.D. and Musselman, L.J.}
}
