@article {118,
	title = {Isoetes microvela (Isoetaceae), a new quillwort from the coastal plain of the southeastern United States},
	journal = {Rhodora},
	volume = {100},
	year = {1998},
	note = {Cited By (since 1996):7Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {261 - 275},
	abstract = {Isoetes microvela, sp. nov., is described from cytologically confirmed hexaploid populations from the coastal plain of North Carolina. At least one population grows over thinly-buried calcareous bedrock, a rare condition on the predominantly acidic southeastern coastal plain. It is a large quillwort of periodically inundated and scoured stream banks and shallow water. It is characterized by a densely short-crested to reticulate-tuberculate megaspore ornamentation pattern intermediate in appearance between that of I. appalachiana and I. hyemalis, an exceptionally small velum covering {\textpm} 10\% of the heavily brown-streaked sporangium, and by obscurely tuberculate microspores. A key to the Isoetes of the southeastern coastal plain is presented. Isoetes microvela is suspected to represent an allopolyploid derived from the doubling of a sterile triploid hybrid, most likely I. {\texttimes}bruntonii (= I. engelmannii {\texttimes} I. hyemalis) or I. appalachiana {\texttimes} I. engelmannii. Isoetes microvela is a rare species, presently known from only two populations.},
	keywords = {Coastal plain endemic, Isoetaceae, Isoetes microvela, North Carolina, Pteridophyte},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0013638592\&partnerID=40\&md5=a11db8019e87e506ac5ab36185a8c4de},
	author = {Brunton, D.F. and Britton, D.M.}
}
@article {123,
	title = {Appalachian quillwort (Isoetes appalachiana, sp. nov.; Isoetaceae), a new pteridophyte from the eastern United States},
	journal = {Rhodora},
	volume = {99},
	year = {1997},
	note = {Cited By (since 1996):10Export Date: 11 November 2013Source: Scopus},
	month = {1997///},
	pages = {118 - 133},
	abstract = {Isoetes appalachiana, sp. nov., is an element of the I. engelmannii complex of North America. Its distinct cytology, spore morphology, and distribution are illustrated and described. Although widely distributed in the eastern United States, it appears to be most common in the Appalachian Mountains. Isoetes appalachiana is tetraploid; it is suspected to be an allopolyploid which evolved from the chromosome doubling of I. X altonharvillii, the sterile hybrid between I. engelmannii (s. str.) and I. valida.},
	keywords = {Appalachian Mountains, Isoetaceae, Isoetes appalachiana, Pteridophyte},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0013681071\&partnerID=40\&md5=ca09a6b7a394918dfcfa73009b9ad85b},
	author = {Brunton, D.F. and Britton, D.M.}
}
@article {62,
	title = {Isoetes x novae-angliae (Isoetaceae), an additional hybrid quillwort from New England},
	journal = {Rhodora},
	volume = {108},
	year = {2006},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2006///},
	pages = {228 - 241},
	abstract = {Isoetes x novae-angliae D.F. Brunt. \& D.M. Britton, hyb. nov., represents a sterile hybrid between the tetraploid aquatic pteridophytes I. riparia and I. tuckermanii. It is known only from North Easton, Massachusetts although it formerly likely occurred across the state as well as in Connecticut and southern New Hampshire. Determination of the distribution and nomenclature of this taxon also clarifies the status of a number of early 20th century taxonomic innovations.},
	keywords = {Hybrid, Isoetaceae, Isoetes x novae-angliae, New England, Pteridophyte},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33750506895\&partnerID=40\&md5=cfb8fb103c449613c66501a4a452c5a6},
	author = {Brunton, D.F. and Britton, D.M.}
}
