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Appalachian quillwort (Isoetes appalachiana, sp. nov.; Isoetaceae), a new pteridophyte from the eastern United States

Publication Type:Journal Article
Year of Publication:1997
Authors:D. F. Brunton, Britton D. M.
Journal:Rhodora
Volume:99
Issue:898
Pagination:118 - 133
Date Published:1997///
Keywords:Appalachian Mountains, Isoetaceae, Isoetes appalachiana, Pteridophyte
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.

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