View source for Trichostomum brachydontium

{{Treatment/ID
|accepted_name=Trichostomum brachydontium
|accepted_authority=Bruch
|publications={{Treatment/Publication
|title=Flora
|place=12: 393, plate 3. 1829,
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Trichostomum mutabile
|authority=De Notaris
}}
|hierarchy=Pottiaceae;Pottiaceae subfam. Trichostomoideae;Trichostomum;Trichostomum brachydontium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pottiaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Pottiaceae subfam. Trichostomoideae]]</div><div class="higher-taxon"><small>genus</small>[[Trichostomum]]</div><div class="higher-taxon"><small>species</small>[[Trichostomum brachydontium]]</div></div>
|volume=Volume 27
|mention_page=page 490, 515, 518
|treatment_page=page 489
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stem </b>rounded-pentagonal in section. <b>Leaves</b> flattened, ovate to elliptical, distal margins plane or weakly erect, entire, not bordered; apex rounded or rounded-acute, plane to weakly concave, keeled or cucullate; basal cells evenly differentiated across leaf base or as a U, only weakly running up margins if at all, not distinctly enlarged submarginally; distal laminal cells pluripapillose with low papillae; mucro short-conic to stout and narrowly tapering, of 3–6(–10 or more) cells. <b>Sexual</b> condition dioicous. <b>Peristome</b> teeth absent, rudimentary or short-lanceolate.</span><!--

-->{{Treatment/Body
|habitat=Rock, soil
|elevation=low to high elevations
|distribution=N.S.;Ala.;Alaska;Calif.;Tenn.;Tex.;Mexico;West Indies;Central America;South America;Eurasia;Africa;Atlantic Islands;Indian Ocean Islands;Pacific Islands (New Zealand);Australia.
|discussion=<p><i>Trichostomum brachydontium</i> is similar to <i>Hyophila involuta</i> in leaf shape and other characters, and sometimes likewise lacks a peristome. The leaves in section often show clearly the adaxially bulging distal cells characteristic of <i>H. involuta</i>, which, however, lacks the laminal papillae superimposed on the mammillae, and is hygrophytic. It is also quite like <i>Tortella humilis</i> when sterile but may be often be distinguished by its more elongate stems, less crowded leaves, which are not fragile (often fragmenting in squares in <i>Tortella humilis</i>), stronger mucro, and somewhat less obvious proximal V of hyaline cells. From <i>Trichostomum tenuirostre</i>, it is immediately distinguished in aspect by its somewhat broader leaf apex and less evident extent of differentiated basal cells. Specimens with short-conic mucros and without sporophytes can be assigned at least tentatively to this species on the rationale that the similar but autoicous <i>Trichostomum planifolium</i> commonly has sporophytes or at least antheridial buds, and the dioicous <i>Weissia inoperculata</i> is extremely rare and possibly introduced. The leaf apex is commonly reflexed, but occasionally slightly cucullate as in <i>Trichostomum crispulum</i>. Although the excurrent costa usually ends in a short-conic apiculus, it can approach (for example, in Tennessee, Norris 17134, MO) in robust specimens the narrowly tapering short awn of robust South American collections.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Trichostomum brachydontium
|author=
|authority=Bruch
|rank=species
|parent rank=genus
|synonyms=Trichostomum mutabile
|basionyms=
|family=Pottiaceae
|habitat=Rock, soil
|elevation=low to high elevations
|distribution=N.S.;Ala.;Alaska;Calif.;Tenn.;Tex.;Mexico;West Indies;Central America;South America;Eurasia;Africa;Atlantic Islands;Indian Ocean Islands;Pacific Islands (New Zealand);Australia.
|reference=None
|publication title=Flora
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_707.xml
|subfamily=Pottiaceae subfam. Trichostomoideae
|genus=Trichostomum
|species=Trichostomum brachydontium
}}<!--

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