View source for Acaulon triquetrum

{{Treatment/ID
|accepted_name=Acaulon triquetrum
|accepted_authority=(Spruce) Müller Hal.
|publications={{Treatment/Publication
|title=Bot. Zeitung (Berlin)
|place=5: 100. 1847,
}}
|basionyms={{Treatment/ID/Basionym
|name=Phascum triquetrum
|authority=Spruce
|publication_title=London J. Bot.
|publication_place=4: 189. 1845
}}
|synonyms=
|hierarchy=Pottiaceae;Pottiaceae subfam. Pottioideae;Acaulon;Acaulon triquetrum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pottiaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Pottiaceae subfam. Pottioideae]]</div><div class="higher-taxon"><small>genus</small>[[Acaulon]]</div><div class="higher-taxon"><small>species</small>[[Acaulon triquetrum]]</div></div>
|volume=Volume 27
|mention_page=page 639
|treatment_page=page 638
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>three-angled, about 1 mm. <b>Stem</b> leaves cuspidate, keeled; laminal cells, 13–18 µm wide, 1–3:1, smooth. <b>Seta</b> as long as the diameter of the capsule. <b>Spores</b> 25–30(–40) µm, finely papillose.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature late autumn-spring.
|habitat=Soil, sand, clay, old fields, pastures, roadside banks, temporarily moist areas
|elevation=low to moderate elevations
|distribution=Ont.;Sask.;Calif.;Ill.;Iowa;Mass.;N.J.;Tex.;Va.;W.Va.;Europe;Asia;n Africa;Australia.
|discussion=<p><i>Acaulon muticum </i>var.<i> rufescens</i> has reflexed apices while <i>A. triquetrum</i> does not always have these, though illustrated as such by H. A. Crum and L. E. Anderson (1981). The exsiccat C. F. Austin, Musci Appalachiani 52 has a short seta and the plant is 1.2 mm, and is placed here with <i>A. muticum </i>var.<i> rufescens</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Acaulon triquetrum
|author=
|authority=(Spruce) Müller Hal.
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Phascum triquetrum
|family=Pottiaceae
|phenology=Capsules mature late autumn-spring.
|habitat=Soil, sand, clay, old fields, pastures, roadside banks, temporarily moist areas
|elevation=low to moderate elevations
|distribution=Ont.;Sask.;Calif.;Ill.;Iowa;Mass.;N.J.;Tex.;Va.;W.Va.;Europe;Asia;n Africa;Australia.
|reference=None
|publication title=Bot. Zeitung (Berlin)
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_940.xml
|subfamily=Pottiaceae subfam. Pottioideae
|genus=Acaulon
|species=Acaulon triquetrum
}}<!--

-->[[Category:Treatment]][[Category:Acaulon]]