Isoetes mississippiensis: A new quillwort from Mississippi, USA

By

Schafran, Peter
Leonard, Steven W. 1943-2022
Bray, Rebecca D.
Taylor, W. Carl, 1946-
Musselman, Lytton

Type

Article

Date of Publication

2016

Original Publication

PhytoKeys

Volume

74

Pages

97-106

Subjects

Isoetaceae , Isoetes , lycophyte , Mississippi , quillwort

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.74.10380

 

Abstract

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.