Isoetes mississippiensis: A new quillwort from Mississippi, USA

Autor: Peter W. Schafran, Steven W. Leonard, Rebecca D. Bray, W. Carl Taylor, Lytton J. Musselman
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: PhytoKeys, Vol 74, Iss , Pp 97-106 (2016)
Druh dokumentu: article
ISSN: 1314-2003
1314-2011
DOI: 10.3897/phytokeys.74.10380
Popis: Isoetes mississippiensis S.W. Leonard, W.C. Taylor, L.J. Musselman and R.D. Bray (Isoetaceae, Lycopodiophyta) is a new species known from two sites along tributaries of the Pearl River in southern Mississippi. This species is distinguished from other species in the southeastern United States by a combination of character states including a basic diploid (2n=22) chromosome count, laevigate megaspores, and a narrow velum covering less than one-third of the adaxial sporangium wall.
Databáze: Directory of Open Access Journals