Difference between revisions of "Selaginella wrightii"
Hedwigia 39: 298. 1900.
Common names: Wright's spike-moss
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>on rock, forming loose to dense mats. <b>Stems</b> not readily fragmenting, prostrate, upperside and underside structurally different, irregularly forked, branches determinate, tips upturned. <b>Rhizophores</b> borne on upperside of stems, throughout stem length, 0.25–0.37 mm diam. <b>Leaves</b> dimorphic, arranged in 8 ranks, tightly appressed, ascending, green; abaxial ridges absent; apex with yellowish bristle 0.2–0.5 mm, becoming denticulate (by breaking off of bristle); bristle usually more persistent in underside leaves. <b>Underside</b> leaves narrowly linear-lanceolate to falcate (on marginal ranks), 3.5–4.5(–5) X 0.55–0.7 mm; base abruptly adnate or slightly decurrent, usually pubescent, sometimes glabrous; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. <b>Upperside</b> leaves linear-lanceolate, 3.3–3.85 × 0.6–0.75 mm; base abruptly adnate, pubescent; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. <b>Strobili</b> solitary, (0.7–)1.5–2(–2.6) cm; sporophylls lanceolate, abaxial ridges not prominent, base glabrous, margins ciliate, apex strongly tapering, bristle obscure.</span><!-- |
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|elevation=800–2300 m | |elevation=800–2300 m | ||
|distribution=N.Mex.;Tex.;Mexico. | |distribution=N.Mex.;Tex.;Mexico. | ||
| − | |discussion=<p>Of other species in the flora, Selaginella wrightii seems to be allied to S. hansenii. The structural differentiation of the stem, adjacently different leaves, and upturned branch tips align the two species to the series Eremophilae. Selaginella wrightii is a calciphile, according to R. M. Tryon (1955).</p><!-- | + | |discussion=<p>Of other species in the flora, <i>Selaginella wrightii</i> seems to be allied to <i>S. hansenii</i>. The structural differentiation of the stem, adjacently different leaves, and upturned branch tips align the two species to the series Eremophilae. <i>Selaginella wrightii</i> is a calciphile, according to R. M. Tryon (1955).</p><!-- |
--><p>Of conservation concern.</p> | --><p>Of conservation concern.</p> | ||
|tables= | |tables= | ||
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name=Selaginella wrightii | name=Selaginella wrightii | ||
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|authority=Hieronymus | |authority=Hieronymus | ||
|rank=species | |rank=species | ||
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|publication year=1900 | |publication year=1900 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_144.xml |
|genus=Selaginella | |genus=Selaginella | ||
|subgenus=Selaginella subg. Tetragonostachys | |subgenus=Selaginella subg. Tetragonostachys | ||
|species=Selaginella wrightii | |species=Selaginella wrightii | ||
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-->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]] | -->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]] | ||
Latest revision as of 20:21, 5 November 2020
Plants on rock, forming loose to dense mats. Stems not readily fragmenting, prostrate, upperside and underside structurally different, irregularly forked, branches determinate, tips upturned. Rhizophores borne on upperside of stems, throughout stem length, 0.25–0.37 mm diam. Leaves dimorphic, arranged in 8 ranks, tightly appressed, ascending, green; abaxial ridges absent; apex with yellowish bristle 0.2–0.5 mm, becoming denticulate (by breaking off of bristle); bristle usually more persistent in underside leaves. Underside leaves narrowly linear-lanceolate to falcate (on marginal ranks), 3.5–4.5(–5) X 0.55–0.7 mm; base abruptly adnate or slightly decurrent, usually pubescent, sometimes glabrous; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. Upperside leaves linear-lanceolate, 3.3–3.85 × 0.6–0.75 mm; base abruptly adnate, pubescent; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. Strobili solitary, (0.7–)1.5–2(–2.6) cm; sporophylls lanceolate, abaxial ridges not prominent, base glabrous, margins ciliate, apex strongly tapering, bristle obscure.
Habitat: On exposed or shaded limestone cliffs
Elevation: 800–2300 m
Distribution
N.Mex., Tex., Mexico.
Discussion
Of other species in the flora, Selaginella wrightii seems to be allied to S. hansenii. The structural differentiation of the stem, adjacently different leaves, and upturned branch tips align the two species to the series Eremophilae. Selaginella wrightii is a calciphile, according to R. M. Tryon (1955).
Of conservation concern.
Selected References
None.
Lower Taxa
None.