View source for Orthotrichum tenellum

{{Treatment/ID
|accepted_name=Orthotrichum tenellum
|accepted_authority=Bruch ex Bridel
|publications={{Treatment/Publication
|title=Bryol. Univ.
|place=1: 786. 1827
|year=1827
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Orthotrichum coulteri
|authority=Mitten
|rank=species
}} {{Treatment/ID/Synonym
|name=O. cylindrocarpum
|authority=Lesquereux
|rank=species
}} {{Treatment/ID/Synonym
|name=O. tenellum var. coulteri
|authority=(Mitten) Grout
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. tenellum var. cylindrocarpum
|authority=(Lesquereux) L. F. Koch
|rank=variety
}}
|hierarchy=Orthotrichaceae;Orthotrichum;Orthotrichum tenellum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orthotrichaceae]]</div><div class="higher-taxon"><small>genus</small>[[Orthotrichum]]</div><div class="higher-taxon"><small>species</small>[[Orthotrichum tenellum]]</div></div>
|volume=Volume 28
|mention_page=page 49, 52, 59, 71
|treatment_page=page 70
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>0.3–1 cm. <b>Stem</b> leaves stiff, erect-appressed when dry, ligulate to lanceolate-oblong, polymorphic, 1.3–2.6 mm; margins revolute to below apex or sometimes broadly reflexed distally, entire, sometimes serrulate in apex; apex obtuse to broadly acute, apiculate, incurved when dry; basal laminal cells broadly rectangular, walls thin, not nodose; distal cells 8–13 µm, 1-stratose, papillae 2 or 3 per cell, conic, low. <b>Specialized</b> asexual reproduction by gemmae on abaxial surface of leaves. <b>Sexual</b> condition cladautoicous or rarely gonioautoicous. <b>Vaginula</b> with hairs absent. <b>Seta</b> to 2 mm. <b>Capsule</b> 2/3 emergent to short-exserted, cylindric to cylindric-elliptic when mature, 1.3–2 mm, strongly 8-ribbed entire length, not constricted below mouth; stomata immersed, in proximal 1/3 of capsule, ± covered by subsidiary cells, cells projecting, inner walls thickened; peristome double; prostome absent; exostome teeth 8, rarely splitting to 16, erect when mature, reflexed when old, papillose; endostome segments 8, rarely 16, well developed, of 2 rows of cells, finely papillose. <b>Calyptra</b> conic-oblong, smooth, naked or sparsely hairy, hairs sometimes papillose by projecting walls. <b>Spores</b> 11–18 µm.</span><!--

-->{{Treatment/Body
|habitat=Trunks of deciduous trees in dry, open areas, rock
|elevation=low to high elevations (100-2000 m)
|distribution=B.C.;Calif.;Nev.;Wash.;Europe;n Africa;Atlantic Islands (Azores;Canary Islands).
|discussion=<p><i>Orthotrichum tenellum</i> is the only western species with deeply immersed stomata, blunt leaves, and oblong-cylindric capsules; its small size distinguishes it from other Californian species found on trees. The leaves are spreading to wide-spreading in the distal portions of the branches.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Orthotrichum tenellum
|authority=Bruch ex Bridel
|rank=species
|parent rank=genus
|synonyms=Orthotrichum coulteri;O. cylindrocarpum;O. tenellum var. coulteri;O. tenellum var. cylindrocarpum
|basionyms=
|family=Orthotrichaceae
|habitat=Trunks of deciduous trees in dry, open areas, rock
|elevation=low to high elevations (100-2000 m)
|distribution=B.C.;Calif.;Nev.;Wash.;Europe;n Africa;Atlantic Islands (Azores;Canary Islands).
|reference=None
|publication title=Bryol. Univ.
|publication year=1827
|special status=Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V28/V28_105.xml
|genus=Orthotrichum
|species=Orthotrichum tenellum
}}<!--

-->[[Category:Treatment]][[Category:Orthotrichum]]