Difference between revisions of "Selaginella viridissima"
J. Arnold Arbor. 24: 326. 1943.
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|common_names=Slender spike-moss | |common_names=Slender spike-moss | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=C | ||
| + | |label=Conservation concern | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Selaginella coryi | |name=Selaginella coryi | ||
|authority=Weatherby | |authority=Weatherby | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Selaginellaceae;Selaginella;Selaginella subg. Tetragonostachys;Selaginella viridissima | |hierarchy=Selaginellaceae;Selaginella;Selaginella subg. Tetragonostachys;Selaginella viridissima | ||
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name=Selaginella viridissima | name=Selaginella viridissima | ||
| − | |||
|authority=Weatherby | |authority=Weatherby | ||
|rank=species | |rank=species | ||
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|publication title=J. Arnold Arbor. | |publication title=J. Arnold Arbor. | ||
|publication year=1943 | |publication year=1943 | ||
| − | |special status= | + | |special status=Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_392.xml |
|genus=Selaginella | |genus=Selaginella | ||
|subgenus=Selaginella subg. Tetragonostachys | |subgenus=Selaginella subg. Tetragonostachys | ||
Latest revision as of 20:23, 5 November 2020
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.