View source for Hypnum procerrimum

{{Treatment/ID
|accepted_name=Hypnum procerrimum
|accepted_authority=Molendo
|publications={{Treatment/Publication
|title=Flora
|place=49: 458. 1866
|year=1866
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Pseudostereodon procerrimus
|authority=(Molendo) M. Fleischer
}}
|hierarchy=Hypnaceae;Hypnum;Hypnum procerrimum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Hypnaceae]]</div><div class="higher-taxon"><small>genus</small>[[Hypnum]]</div><div class="higher-taxon"><small>species</small>[[Hypnum procerrimum]]</div></div>
|volume=Volume 28
|mention_page=page 533
|treatment_page=page 546
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>large, rusty brown to golden brown or occasionally dark green, dull. <b>Stems</b> 2–8 cm, yellowish to brownish, suberect to procumbent, densely branched, regularly pinnate, branches 0.1–1.5 cm; hyalodermis absent, central strand present; pseudoparaphyllia foliose. <b>Stem</b> leaves falcate-secund, ovate-oblong, gradually narrowing to apex, 1–1.5 × 0.5–0.8 mm; base often auriculate; margins plane, entire to sinuate; acumen tapering; costa double and slender or ecostate; alar cells many, subquadrate to hexagonal, region well defined in auriculate portion, not excavate, 7–8 cells high along margin, 6–8 cells wide; basal laminal cells slender, yellowish or brownish, walls porose; medial cells 60 × 8 µm. <b>Sexual</b> condition dioicous. <b>Sporophytes</b> unknown.</span><!--

-->{{Treatment/Body
|habitat=Terrestrial, calcareous open terrain, rock, cliff ledges and bases, tundra, open spruce forests, edges of sandy beaches
|elevation=low to moderate elevations (0-1500 m)
|distribution=Alta.;B.C.;Nfld. and Labr. (Nfld.);N.W.T.;Nunavut;Yukon;Alaska;Mont.;Europe.
|discussion=<p>Hypnum procerrimum has an interrupted distribution in Arctic and alpine areas of the Northern Hemisphere, usually in well-drained sites. Plants of H. procerrimum have blunt, weakly toothed pseudoparaphyllia and triangular alar regions; the medial laminal cells are linear-flexuose with somewhat pitted walls. The species is very distinctive; some small forms might be confused with Ctenidium molluscum, but the toothed leaves and the laminal cells often with projecting distal ends distinguish the latter.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Hypnum procerrimum
|author=
|authority=Molendo
|rank=species
|parent rank=genus
|synonyms=Pseudostereodon procerrimus
|basionyms=
|family=Hypnaceae
|habitat=Terrestrial, calcareous open terrain, rock, cliff ledges and bases, tundra, open spruce forests, edges of sandy beaches
|elevation=low to moderate elevations (0-1500 m)
|distribution=Alta.;B.C.;Nfld. and Labr. (Nfld.);N.W.T.;Nunavut;Yukon;Alaska;Mont.;Europe.
|reference=None
|publication title=Flora
|publication year=1866
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V28/V28_848.xml
|genus=Hypnum
|species=Hypnum procerrimum
}}<!--

-->[[Category:Treatment]][[Category:Hypnum]]