View source for Oreas ← Oreas You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{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-d0_s0" data-properties="whole_organism coloration;whole_organism coloration;whole_organism growth form;cushion density;radicle coloration"><b>Plants </b>in dense cushions, yellow-green distally, brown and compacted with redbrown radicles proximally.</span> <span class="statement" id="st-d0_s1" data-properties="stem shape"><b>Stems </b>forked.</span> <span class="statement" id="st-d0_s2" data-properties="leaf orientation;leaf shape;leaf shape;leaf shape;cell shape;cell coloration;point shape;point coloration;point height or length or size"><b>Leaves </b>erect-spreading, crisped when dry, lance-acuminate, keeled, ending in a sharp, hyaline cell or short point;</span> <span class="statement" id="st-d0_s3" data-properties="margin architecture;margin shape or vernation;margin architecture or shape;margin architecture or course">margins 2-stratose and narrowly revolute nearly to the apex, entire or somewhat irregular;</span> <span class="statement" id="st-d0_s4" data-properties="costa prominence;costa architecture or pubescence or relief;costa architecture">costa prominent at base, smooth, ending near the leaf apex, entire to shortly excurrent;</span> <span class="statement" id="st-d0_s5" data-properties="distal cell shape;distal cell architecture or pubescence or relief;distal cell architecture">distal cells irregularly roundedquadrate, smooth, thick-walled;</span> <span class="statement" id="st-d0_s6" data-properties="basal-cell shape;basal-cell architecture">basal-cells narrowly rectangular, thick-walled, the alar cells not differentiated.</span> <span class="statement" id="st-d0_s7" data-properties="cell variability;cell reproduction;cell reproduction"><b>Sexual </b>condition autoicous;</span> <span class="statement" id="st-d0_s8" data-properties="perigonial bud size">perigonial buds minute, at base of perichaetium;</span> <span class="statement" id="st-d0_s9" data-properties="awn height or length or size;awn coloration">perichaetial leaves similar to stem-leaves, ending in a short, hyaline awn.</span> <span class="statement" id="st-d0_s10" data-properties="seta course;seta course;seta shape;seta coloration"><b>Seta </b>straight or somewhat curved when dry, cygneous when moist, yellow.</span> <span class="statement" id="st-d0_s11" data-properties="capsule orientation;capsule orientation;capsule architecture;capsule architecture or shape;capsule shape;capsule width;capsule condition or size;middle coloration;middle architecture or shape"><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, orangebrown, strongly ribbed;</span> <span class="statement" id="st-d0_s12" data-properties="annulus duration">annulus persistent;</span> <span class="statement" id="st-d0_s13" data-properties="operculum shape;base shape">operculum obliquely rostrate from a convex base;</span> <span class="statement" id="st-d0_s14" data-properties="peristome tooth position;peristome tooth shape;peristome tooth coloration;peristome tooth architecture or shape;peristome tooth architecture;peristome tooth architecture or shape;peristome tooth coloration;peristome tooth coloration;peristome tooth relief">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.</span> <span class="statement" id="st-d0_s15" data-properties="calyptra shape;calyptra architecture or pubescence or relief"><b>Calyptra </b>cucullate, smooth.</span> <span class="statement" id="st-d0_s16" data-properties="spore relief;spore coloration"><b>Spores </b>warty-papillose, brown.</span><!-- -->{{Treatment/Body |distribution=North America;Europe;Asia |discussion=<p>Species 1.</p><!-- --><p>Oreas much resembles Cynodontium, 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://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V27/V27_606.xml |genus=Oreas |annulus duration=persistent |awn coloration=hyaline |awn height or length or size=short |basal-cell architecture=thick-walled |basal-cell shape=rectangular |base shape=convex |calyptra architecture or pubescence or relief=smooth |calyptra shape=cucullate |capsule architecture=short-necked |capsule architecture or shape=symmetric |capsule condition or size=contracted |capsule orientation=pendent;erect |capsule shape=subglobose |capsule width=broader |cell coloration=hyaline |cell reproduction=autoicous;sexual |cell shape=sharp |cell variability=not differentiated |costa architecture=entire;shortly excurrent |costa architecture or pubescence or relief=smooth |costa prominence=prominent |cushion density=dense |distal cell architecture=thick-walled |distal cell architecture or pubescence or relief=smooth |distal cell shape=roundedquadrate |leaf orientation=erect-spreading |leaf shape=keeled;lance-acuminate;crisped |margin architecture=2-stratose |margin architecture or course=irregular |margin architecture or shape=entire |margin shape or vernation=revolute |middle architecture or shape=ribbed |middle coloration=orangebrown |operculum shape=rostrate |perigonial bud size=minute |peristome tooth architecture=perforated |peristome tooth architecture or shape=cleft;entire |peristome tooth coloration=pale;yellowish-brown;brown |peristome tooth position=inserted |peristome tooth relief=striolate |peristome tooth shape=lance-acuminate |point coloration=hyaline |point height or length or size=short |point shape=sharp |radicle coloration=redbrown |seta coloration=yellow |seta course=curved;straight |seta shape=cygneous |spore coloration=brown |spore relief=warty-papillose |stem shape=forked |whole_organism coloration=brown;yellow-green |whole_organism growth form=plant }}<!-- -->[[Category:Treatment]][[Category:Dicranaceae]] Templates used on this page: Template:Dicranaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Template:Treatment/Reference (view source) Return to Oreas.