Difference between revisions of "Orthotrichum pulchellum"
in J. E. Smith et al., Engl. Bot. 25: plate 1787. 1807.
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|accepted_name=Orthotrichum pulchellum | |accepted_name=Orthotrichum pulchellum | ||
− | |accepted_authority=Brunton | + | |accepted_authority=Brunton |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in J. E. Smith et al., Engl. Bot. | |title=in J. E. Smith et al., Engl. Bot. | ||
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|name=Orthotrichum pulchellum var. groutii | |name=Orthotrichum pulchellum var. groutii | ||
|authority=E. Lawton | |authority=E. Lawton | ||
+ | |rank=variety | ||
}} | }} | ||
|hierarchy=Orthotrichaceae;Orthotrichum;Orthotrichum pulchellum | |hierarchy=Orthotrichaceae;Orthotrichum;Orthotrichum pulchellum | ||
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name=Orthotrichum pulchellum | name=Orthotrichum pulchellum | ||
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− | |authority=Brunton | ||
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|publication year=1807 | |publication year=1807 | ||
|special status=Endemic | |special status=Endemic | ||
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|genus=Orthotrichum | |genus=Orthotrichum | ||
|species=Orthotrichum pulchellum | |species=Orthotrichum pulchellum |
Latest revision as of 22:38, 5 November 2020
Plants to 1.6 cm. Stem leaves crisped-flexuose when dry, narrowly lanceolate to linear-lanceolate, 1.6–3.2 mm; margins recurved to near apex, entire; apex sharply acute; basal laminal cells rectangular, walls thick, not nodose; distal cells 8–14 µm, 1-stratose, papillae 1–2 per cell, conic, small. Specialized asexual reproduction absent. Sexual condition gonioautoicous. Seta (0.8–)1–3(–3.5) mm. Capsule exserted or sometimes 1/2 emergent, oblong-cylindric, 0.9–2.1 mm, strongly 8-ribbed entire length; stomata immersed, in mid and distal capsule; peristome double; prostome absent; exostome teeth 16, rarely connate in 8 pairs, erect when mature, reflexed when old, irregularly papillose-reticulate; endostome segments 16, well developed, of 1 row of cells, finely roughened. Calyptra oblong-conic to conic, smooth, naked. Spores 12–24 µm.
Habitat: Trunks, branches, twigs of deciduous and coniferous trees
Elevation: low to moderate elevations (0-1000 m)
Distribution
![V28 89-distribution-map.gif](/w/images/a/aa/V28_89-distribution-map.gif)
B.C., Alaska, Calif., Idaho, Oreg., Wash.
Discussion
Orthotrichum pulchellum is distinguished from all species of Ulota by its glabrous calyptrae and immersed stomata, and from O. consimile by the 16 reddish exostome teeth that are papillose-reticulate with slender, high papillae, and stomata always located at or beyond mid capsule. Also, plants of O. pulchellum are rarely longer than 1 cm, and capsules are usually barely exserted and oblong-cylindric.
Selected References
None.