Difference between revisions of "Orthotrichum keeverae"
J. Elisha Mitchell Sci. Soc. 72: 281, figs. 3 – 12. 1956.
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|elevation=moderate to high elevations (1500-2000 m) | |elevation=moderate to high elevations (1500-2000 m) | ||
|distribution=N.C.;Va. | |distribution=N.C.;Va. | ||
| − | |discussion=<p>Orthotrichum keeverae is the only species in southeastern North America with 16 recurved exostome teeth, a stout endostome, and cuspidate leaf apices. The exostome teeth are truncate and partially connate at the base, forming a basal membrane.</p> | + | |discussion=<p><i>Orthotrichum keeverae</i> is the only species in southeastern North America with 16 recurved exostome teeth, a stout endostome, and cuspidate leaf apices. The exostome teeth are truncate and partially connate at the base, forming a basal membrane.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1956 | |publication year=1956 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |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/V28/V28_74.xml |
|genus=Orthotrichum | |genus=Orthotrichum | ||
|species=Orthotrichum keeverae | |species=Orthotrichum keeverae | ||
Revision as of 18:07, 18 September 2019
Plants 0.5–2 cm. Stem leaves rigid, erect-appressed when dry, oblong-lanceolate to narrowly lanceolate, 2.2–4 mm; margins revolute nearly to apex, often irregularly notched near apex; apex slender-acute, cuspidate; basal laminal cells linear-elongate, walls thick, nodose; distal cells 7–14 µm, 1-stratose, papillae 1 or 2 per cell, conic, small. Specialized asexual reproduction absent. Sexual condition gonioautoicous. Seta 1 mm. Capsule 1/2 emergent when dry, cylindric, 1.5–2 mm, distinctly 8-ribbed entire length when mature; stomata superficial; peristome double; prostome absent; exostome teeth 16, often connate at base, recurved when dry, truncate, densely papillose; endostome segments 16, well developed, usually present when capsule is old and dry, thick, stout, of 2 rows of cells, almost as wide as exostome teeth, yellowish brown, densely papillose. Calyptra conic-oblong, smooth, hairy, hairs papillose. Spores 17–27 µm.
Habitat: Trunks and branches of live and dead Quercus montana
Elevation: moderate to high elevations (1500-2000 m)
Discussion
Orthotrichum keeverae is the only species in southeastern North America with 16 recurved exostome teeth, a stout endostome, and cuspidate leaf apices. The exostome teeth are truncate and partially connate at the base, forming a basal membrane.
Selected References
None.