Results 151 to 160 of about 1,194 (176)
Some of the next articles are maybe not open access.

The significance of a new umbellate ornamentation in Isoetes (Isoetaceae: Lycopodiopsida) megaspores

open access: yesGrana, 2020
A new umbellate ornamentation pattern is described in Isoetes megaspores based on scanning electron microscopy and thorough comparisons with sculptural patterns documented in lycophytes and ferns.
S. Singh   +3 more
semanticscholar   +2 more sources

Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)

Phytotaxa, 2021
Isoetes jarmaniae sp. nov. is described as a new lycophyte endemic to Tasmania, Australia, where it is confined to peat-bound karstic wetlands in several river valleys in the south-west wilderness. While seemingly morphologically closest to I. drummondii,
D. Brunton   +3 more
semanticscholar   +2 more sources

The taxonomy and conservation status of Isoetes (Isoetaceae; Lycopodiopsida) in India

Botany Letters, 2020
In many cases over the years the diversity of Isoetes in India has been defined by inconsistent morphological analyses and questionable data. This has resulted in substantial confusion, dramatically different taxonomic interpretations and a low level of ...
S. Singh   +4 more
semanticscholar   +2 more sources

On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France

Phytotaxa
This paper deals with typification of three species names in Isoetes described from France: the lectotype previously designated for I. delalandei J.Lloyd is here superseded by another lectotype according to new evidence, and lectotypes are designated for
M. Boudrie   +3 more
semanticscholar   +5 more sources

Isoetes salishensis, sp. nov. (Isoetaceae - Lycopodiopsida), An Endemic Quillwort of Coastal British Columbia, Canada

American Fern Journal
. The distinguishing features of a previously unknown amphibious Isoetes discovered in coastal British Columbia, Canada are described. Although occurring in an ephemeral, vernal, seaside rock pool habitat thought to be indicative of I.
Daniel F. Brunton, P. Sokoloff
semanticscholar   +2 more sources

Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

Phytotaxa
Two new endemic Isoetes from Zhejiang, China, Isoetes changleensis (2n = 22) and Isoetes yuhangensis (2n = 22), are described and illustrated. The morphological characteristics of I.
Chenlai Liu   +5 more
semanticscholar   +3 more sources

Sporewells: an effective and inexpensive device for preservation and exhibition of Isoetes (Isoetaceae – Lycopodiopsida) megaspores other minute herbarium specimen elements

Botany
After being employed for approximately 40 years as a device for the protection and display of megaspores on Isoetes herbarium specimens, the utility and benefit of sporewells is reviewed.
Daniel F. Brunton
semanticscholar   +2 more sources

Selaginella kriegeriana (Selaginellaceae – Lycopodiopsida), an Endemic New Species from Brazil with Notes about the Genus in Caparaó National Park

Systematic Botany, 2018
We describe and illustrate Selaginella kriegeriana, a narrow endemic species from Caparaó National Park, Brazil, and discuss its affinities. Scanning electron micrograph images of spores and leaves supplement our discussion.
L. A. Góes-Neto, A. Salino
semanticscholar   +2 more sources

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