View source for Oreas

{{Treatment/ID
|accepted_name=Oreas
|accepted_authority=Bridel
|publications={{Treatment/Publication
|title=Bryol. Univ.
|place=1: 380. 1826 ,
}}
|basionyms=
|synonyms=
|hierarchy=Dicranaceae;Oreas
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dicranaceae]]</div><div class="higher-taxon"><small>genus</small>[[Oreas]]</div></div>
|etymology=Greek Oread, mythological nymph of hills and mountains, alluding to alpine habitat
|volume=Volume 27
|mention_page=page 359, 381
|treatment_page=page 425
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>in dense cushions, yellow-green distally, brown and compacted with red-brown radicles proximally. <b>Stems</b> forked. <b>Leaves</b> erect-spreading, crisped when dry, lance-acuminate, keeled, ending in a sharp, hyaline cell or short point; margins 2-stratose and narrowly revolute nearly to the apex, entire or somewhat irregular; costa prominent at base, smooth, ending near the leaf apex, entire to shortly excurrent; distal cells irregularly rounded-quadrate, smooth, thick-walled; basal cells narrowly rectangular, thick-walled, the alar cells not differentiated. <b>Sexual</b> condition autoicous; perigonial buds minute, at base of perichaetium; perichaetial leaves similar to stem leaves, ending in a short, hyaline awn. <b>Seta</b> straight or somewhat curved when dry, cygneous when moist, yellow. <b>Capsule</b> mostly erect when dry, pendent when moist, short-necked, symmetric, subglobose but becoming broader at the mouth and somewhat contracted at the middle when dry, orange-brown, strongly ribbed; annulus persistent; operculum obliquely rostrate from a convex base; peristome teeth inserted slightly below the mouth, lance-acuminate, brown at base, entire or occasionally somewhat perforated, rarely cleft, yellowish brown above, pale at the slender tips, vertically striolate throughout. <b>Calyptra</b> cucullate, smooth. <b>Spores</b> warty-papillose, brown.</span><!--

-->{{Treatment/Body
|distribution=North America;Europe;Asia.
|discussion=<p>Species 1.</p><!--
--><p><i>Oreas</i> much resembles <i>Cynodontium</i>, but has a cygneous seta (when moist) and symmetric capsules. European specimens are more slender, with shorter leaves, but the differences are not significant.</p>
|tables=
|references={{Treatment/Reference
|id=steere1958a
|text=Steere, W. C. 1958. The discovery of Oreas martiana in arctic Alaska, a genus new to North America. Bryologist 61: 119–124.
}}{{Treatment/Reference
|id=weber1960a
|text=Weber, W. A. 1960. A second American record for Oreas martiana, from Colorado. Bryologist 63: 241–244.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Oreas
|author=William A. Weber
|authority=Bridel
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Dicranaceae
|distribution=North America;Europe;Asia.
|reference=steere1958a;weber1960a
|publication title=Bryol. Univ.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V27/V27_606.xml
|genus=Oreas
}}<!--

-->[[Category:Treatment]][[Category:Dicranaceae]]