View source for Fissidens ventricosus

{{Treatment/ID
|accepted_name=Fissidens ventricosus
|accepted_authority=Lesquereux
|publications={{Treatment/Publication
|title=Mem. Calif. Acad. Sci.
|place=1: 7. 1868,
}}
|basionyms=
|synonyms=
|hierarchy=Fissidentaceae;Fissidens;Fissidens ventricosus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Fissidentaceae]]</div><div class="higher-taxon"><small>genus</small>[[Fissidens]]</div><div class="higher-taxon"><small>species</small>[[Fissidens ventricosus]]</div></div>
|volume=Volume 27
|mention_page=page 332, 333, 336
|treatment_page=page 345
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>to 25 × 3.5 mm. <b>Stem</b> unbranched and branched; axillary hyaline nodules absent; central strand weak. <b>Leaves</b> as many as 35 pairs, lanceolate to oblong-lingulate, acute to obtuse-apiculate; to 5 × 0.9 mm; dorsal lamina narrowed proximally, ending at insertion, not decurrent; vaginant laminae 1/2–2/3 leaf length, equal; margin ± entire, limbate on all laminae, limbidium reaching apex or ending a few cells before apex and a few cells above insertion of dorsal lamina, limbidial cells 3- to 6-stratose; costa ± percurrent, bryoides-type; laminal cells 1-stratose, or variably 2-stratose, smooth, slightly bulging, firm-walled, irregularly quadrate to hexagonal, 8–13 µm, ± twice as deep as wide. <b>Sexual</b> condition probably rhizautoicous; perigonia not seen; perichaetia on elongate stems. <b>Sporophytes</b> 1–2 per perichaetium. <b>Seta</b> stout, to 3 mm, geniculate. <b>Capsule</b> theca emergent, erect, radially symmetric, to 1.2 mm; peristome bryoides-type; operculum 0.4 mm. <b>Calyptra</b> not seen. <b>Spores</b> 23–40 µm.</span><!--

-->{{Treatment/Body
|habitat=Attached to rocks and other substrates in rapidly running streams, infrequently on wet rocks beside streams
|distribution=B.C.;Calif.;Idaho;Oreg.;Wash.
|discussion=<p><i>Fissidens ventricosus</i> occurs along the Pacific Coast of North America and at a disjunct site in northern Idaho (see map in R. R. Ireland and W. B. Schofield 1967). It is distinguished by its aquatic habitat, strongly limbate leaves, variably 2-stratose laminal cells, short, thick, geniculate seta, and emergent capsule. Plants usually become black and covered with diatoms. The species might be confused with F. rigidulus Hooker f. & Wilson, but the latter, found in wet sites in the Americas from Chile north to Mexico but not known in the United States, has much smaller laminal cells and a long seta characteristic of terrestrial species. The calyptra of <i>F. ventricosus</i> is cucullate according to Ireland and Schofield.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Fissidens ventricosus
|authority=Lesquereux
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Fissidentaceae
|habitat=Attached to rocks and other substrates in rapidly running streams, infrequently on wet rocks beside streams
|distribution=B.C.;Calif.;Idaho;Oreg.;Wash.
|reference=None
|publication title=Mem. Calif. Acad. Sci.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V27/V27_476.xml
|genus=Fissidens
|species=Fissidens ventricosus
}}<!--

-->[[Category:Treatment]][[Category:Fissidens]]