Difference between revisions of "Selaginella viridissima"
J. Arnold Arbor. 24: 326. 1943.
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|elevation=1650–2300 m | |elevation=1650–2300 m | ||
|distribution=Tex.;Mexico in Coahuila. | |distribution=Tex.;Mexico in Coahuila. | ||
| − | |discussion=<p>In Texas Selaginella viridissima is known only from the Chisos Mountains.</p><!-- | + | |discussion=<p>In Texas <i>Selaginella viridissima</i> is known only from the Chisos Mountains.</p><!-- |
--><p>Of conservation concern.</p> | --><p>Of conservation concern.</p> | ||
|tables= | |tables= | ||
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|publication year=1943 | |publication year=1943 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_392.xml |
|genus=Selaginella | |genus=Selaginella | ||
|subgenus=Selaginella subg. Tetragonostachys | |subgenus=Selaginella subg. Tetragonostachys | ||
Revision as of 15:47, 18 September 2019
Plants on rock, forming clumps or mounds. Stems radially symmetric, underground (rhizomatous) and aerial, not readily fragmenting, irregularly forked; rhizomatous and aerial stems often with 1 branch arrested, budlike, tips straight; aerial stems mainly erect, seldom ascending, with budlike arrested branches throughout stem length. Rhizophores borne on upperside of stems, restricted to rhizomatous stems and lower 1/4 of aerial stems, 0.16–0.3 mm diam. Leaves dimorphic, not clearly ranked. Rhizomatous stem leaves loosely appressed, straight, scalelike. Aerial stem leaves appressed, ascending, green, linear-lanceolate to narrowly lanceolate, 1.8–2.1 × 0.49–0.56 mm; abaxial ridges prominent; base cuneate and decurrent to slightly rounded and adnate, glabrous; margins denticulate to very short-ciliate, cilia transparent, spreading to ascending toward apex, 0.02–0.04 mm; apex acute or seldom blunt. Strobili solitary, 0.5–1.2(–2.5) cm; sporophylls deltate-ovate to ovate-lanceolate, abaxial ridges prominent, base glabrous, margins denticulate, apex acute to obtuse.
Habitat: Shaded cliffs, slopes, rock crevices, and igneous rock
Elevation: 1650–2300 m
Distribution
Tex., Mexico in Coahuila.
Discussion
In Texas Selaginella viridissima is known only from the Chisos Mountains.
Of conservation concern.
Selected References
None.