View source for Hypnum pallescens

{{Treatment/ID
|accepted_name=Hypnum pallescens
|accepted_authority=(Hedwig) P. Beauvois
|publications={{Treatment/Publication
|title=Prodr. Aethéogam.,
|place=67. 1805
|year=1805
}}
|basionyms={{Treatment/ID/Basionym
|name=Leskea pallescens
|authority=Hedwig
|rank=species
|publication_title=Sp. Musc. Frond.,
|publication_place=219, plate 55, figs. 1–6. 1801
}}
|synonyms={{Treatment/ID/Synonym
|name=Hypnum depressulum
|authority=Müller Hal.
|rank=species
}} {{Treatment/ID/Synonym
|name=H. pallescens var. protuberans
|authority=(Bridel) Lesquereux & James
|rank=variety
}} {{Treatment/ID/Synonym
|name=H. reptile
|authority=(Hedwig) Mitten
|rank=species
}} {{Treatment/ID/Synonym
|name=Stereodon pallescens
|authority=
|rank=species
}}
|hierarchy=Hypnaceae;Hypnum;Hypnum pallescens
|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 pallescens]]</div></div>
|volume=Volume 28
|mention_page=page 315, 534, 545, 581
|treatment_page=page 544
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small, yellowish, golden green, dark green, or brownish. <b>Stems</b> 2–5 cm, yellowish to golden green, usually creeping, regularly to irregularly pinnate, branches 0.2–0.4(–6) cm; hyalodermis absent, central strand weakly developed; pseudoparaphyllia lanceolate. <b>Stem</b> leaves falcate-secund, rarely straight, ovate- to oblong-lanceolate, narrowed to apex, 0.6–1.1 × 0.4–0.6 mm; base not or weakly decurrent, not auriculate; margins usually broadly or narrowly recurved proximally, sometimes to apex, serrulate to nearly entire proximally, serrate distally; acumen short, slender to relatively wide; costa double, rarely single, faint to distinct; alar cells subquadrate or transversely rectangular, subopaque, region not well defined, not excavate, 8–15(–20) cells in marginal row; basal laminal cells broader than medial cells, often yellowish, walls pitted; medial cells 30–50 × 4–5 µm, walls not pitted. <b>Branch</b> leaves with margins frequently strongly serrate; apex more gradually acuminate. <b>Sexual</b> condition autoicous; inner perichaetial leaves oblong-lanceolate, margins serrate distally, acumen slender, costa double or rarely single, faint or distinct. <b>Seta</b> yellowish brown to red, 0.7–1.5 cm. <b>Capsule</b> inclined to horizontal, rarely suberect, yellowish to dark brown, oblong to subcylindric, 1–2.3 mm; annulus 1- or 2-seriate; operculum conic; endostome cilia 2 or 3.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature Jun–Aug.
|habitat=Rock, boulders, rotten wood, epiphytic on trees, especially tree bases, forested areas
|elevation=low to high elevations (0-2000 m)
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Ala.;Alaska;Ariz.;Colo.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Wyo.;Europe;Asia.
|discussion=<p><i>Hypnum pallescens</i> occurs from sea level to higher elevations in eastern North America, mainly in forested areas. In western North America, it is less frequent, found from near sea level to subalpine elevations of 2000 m. Plants of this species are firmly affixed to the substrate by rhizoids and usually produce abundant sporophytes in summer; the slightly flattened to somewhat julaceous branches emerge in a horizontal plane; pseudoparaphyllia are infrequent; and the laminal cells are weakly papillose at the ends. <i>Hypnum recurvatum</i> is similar in size, but the alar cells are more numerous than in <i>H. pallescens</i>, and the leaves are hamate to circinate in <i>H. recurvatum</i>, falcate in <i>H. pallescens</i>; pseudoparaphyllia are foliose and mainly four or more cells wide in <i>H. pallescens</i>, while those in <i>H. recurvatum</i> are filamentous, often 1-seriate but generally lanceolate. <i>Hypnum recurvatum</i> occurs mainly on limey rock while <i>H. pallescens</i> is found usually on acid rock.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Hypnum pallescens
|authority=(Hedwig) P. Beauvois
|rank=species
|parent rank=genus
|synonyms=Hypnum depressulum;H. pallescens var. protuberans;H. reptile;Stereodon pallescens
|basionyms=Leskea pallescens
|family=Hypnaceae
|phenology=Capsules mature Jun–Aug.
|habitat=Rock, boulders, rotten wood, epiphytic on trees, especially tree bases, forested areas
|elevation=low to high elevations (0-2000 m)
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Ala.;Alaska;Ariz.;Colo.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Wyo.;Europe;Asia.
|reference=None
|publication title=Prodr. Aethéogam.,
|publication year=1805
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V28/V28_845.xml
|genus=Hypnum
|species=Hypnum pallescens
}}<!--

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