View source for Ptilium ← Ptilium 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=Ptilium |accepted_authority=De Notaris |publications={{Treatment/Publication |title=Comment. Soc. Crittog. Ital. |place=2: 283. 1867 |year=1867 }} |basionyms= |synonyms= |hierarchy=Hypnaceae;Ptilium |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Hypnaceae]]</div><div class="higher-taxon"><small>genus</small>[[Ptilium]]</div></div> |etymology=Greek ptilon, feather, alluding to plumelike habit |volume=Volume 28 |mention_page=page 516, 563, 644 |treatment_page=page 562 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism size;whole_organism coloration;whole_organism reflectance;whole_organism growth form;mat architecture or fragility"><b>Plants </b>large, in loose mats, dark green to golden, shiny.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture or shape"><b>Stems </b>suberect to ascending, forming fronds, regularly pinnate;</span> <span class="statement" id="st-d0_s2" data-properties="hyalodermi presence;central strand presence;central strand fragility">hyalodermis absent, central strand present, weak;</span> <span class="statement" id="st-d0_s3" data-properties="pseudoparaphyllium architecture">pseudoparaphyllia foliose.</span> <span class="statement" id="st-d0_s4" data-properties="stem variability;branch leaf variability"><b>Stem </b>and branch leaves differentiated.</span> <span class="statement" id="st-d0_s5" data-properties="stem-leaf orientation;stem-leaf shape;stem-leaf width;stem-leaf architecture or arrangement or shape or vernation"><b>Stem-</b>leaves squarrose, broadly ovate, widest beyond base, strongly plicate;</span> <span class="statement" id="st-d0_s6" data-properties="base shape">base not decurrent;</span> <span class="statement" id="st-d0_s7" data-properties="margin shape;margin architecture or shape">margins plane, sharply serrulate distally;</span> <span class="statement" id="st-d0_s8" data-properties="apex shape">apex acuminate;</span> <span class="statement" id="st-d0_s9" data-properties="">ecostate or costa short, double;</span> <span class="statement" id="st-d0_s10" data-properties="costa height or length or size;cell variability;cell shape;cell shape">alar cells differentiated, rectangular or quadrate;</span> <span class="statement" id="st-d0_s11" data-properties="laminal cell architecture or pubescence or relief">laminal cells smooth;</span> <span class="statement" id="st-d0_s12" data-properties="distal cell quantity;distal cell quantity">distal cells usually longer than 6: 1.</span> <span class="statement" id="st-d0_s13" data-properties="branch leaf architecture;branch leaf orientation;branch leaf shape;branch leaf shape;branch leaf architecture or arrangement or shape or vernation;branch leaf some measurement"><b>Branch </b>leaves usually circinate-secund, pointing toward base (not underside) of main shoot, oblong-lanceolate, tapering to apex, plicate, 1–2 mm;</span> <span class="statement" id="st-d0_s14" data-properties="costa height or length or size">costa double, short;</span> <span class="statement" id="st-d0_s15" data-properties="">laminal cells long-linear.</span> <span class="statement" id="st-d0_s16" data-properties=""><b>Specialized </b>asexual reproduction absent.</span> <span class="statement" id="st-d0_s17" data-properties="laminal cell arrangement or course or shape;laminal cell development;laminal cell reproduction;laminal cell presence;laminal cell reproduction;laminal cell reproduction"><b>Sexual </b>condition dioicous;</span> <span class="statement" id="st-d0_s18" data-properties="perichaetial leaf shape;apex shape">perichaetial leaves lanceolate, apex subulate.</span> <span class="statement" id="st-d0_s19" data-properties="seta coloration"><b>Seta </b>redbrown.</span> <span class="statement" id="st-d0_s20" data-properties="capsule orientation;capsule shape;capsule course or shape;capsule condition or size"><b>Capsule </b>horizontal, cylindric, arcuate, contracted below mouth;</span> <span class="statement" id="st-d0_s21" data-properties="annulus size or width">annulus narrow;</span> <span class="statement" id="st-d0_s22" data-properties="operculum shape">operculum long-conic;</span> <span class="statement" id="st-d0_s23" data-properties="">peristome double;</span> <span class="statement" id="st-d0_s24" data-properties="exostome tooth relief;exostome tooth relief">exostome teeth striolate basally, papillose distally;</span> <span class="statement" id="st-d0_s25" data-properties="basal membrane width;segment width;segment shape;cilium quantity;cilium quantity">endostome basal membrane broad, segments broad, keeled, cilia 2 or 3, nearly as long as segments.</span> <span class="statement" id="st-d0_s26" data-properties="calyptra architecture"><b>Calyptra </b>naked.</span> <span class="statement" id="st-d0_s27" data-properties="spore shape;spore relief"><b>Spores </b>spheric, smooth to finely papillose.</span><!-- -->{{Treatment/Body |distribution=North America;Europe;Asia;terrestrial habitats in temperate;boreal;and subarctic regions |discussion=<p>Species 1.</p><!-- --><p>Ptilium is a remarkably elegant genus that is usually easily distinguished from Hypnum, as the plants have extremely plicate circinate leaves that curve proximally, toward the base of the main stem, not ventrally to the underside of the stem as those in Hypnum. The exostome teeth are red-brown and lanceolate; the endostome is pale yellow.</p> |tables= |references= }}<!-- --><!-- -->{{#Taxon: name=Ptilium |author=Wilfred B. Schofield† |authority=De Notaris |rank=genus |parent rank=family |synonyms= |basionyms= |family=Hypnaceae |distribution=North America;Europe;Asia;terrestrial habitats in temperate;boreal;and subarctic regions |reference=None |publication title=Comment. Soc. Crittog. Ital. |publication year=1867 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V28/V28_877.xml |genus=Ptilium |annulus size or width=narrow |apex shape=subulate;acuminate |basal membrane width=broad |base shape=not decurrent |branch leaf architecture=circinate-secund |branch leaf architecture or arrangement or shape or vernation=plicate |branch leaf orientation=pointing |branch leaf shape=tapering;oblong-lanceolate |branch leaf some measurement=1mm;2mm |branch leaf variability=differentiated |calyptra architecture=naked |capsule condition or size=contracted |capsule course or shape=arcuate |capsule orientation=horizontal |capsule shape=cylindric |cell shape=quadrate;rectangular |cell variability=differentiated |central strand fragility=weak |central strand presence=absent |cilium quantity=3;2 |costa height or length or size=short;short |distal cell quantity=1;6 |exostome tooth relief=papillose;striolate |hyalodermi presence=absent |laminal cell architecture or pubescence or relief=smooth |laminal cell arrangement or course or shape=long-linear |laminal cell development=specialized |laminal cell presence=absent |laminal cell reproduction=dioicous;sexual;asexual |margin architecture or shape=serrulate |margin shape=plane |mat architecture or fragility=loose |operculum shape=long-conic |perichaetial leaf shape=lanceolate |pseudoparaphyllium architecture=foliose |segment shape=keeled |segment width=broad |seta coloration=redbrown |spore relief=smooth;finely papillose |spore shape=spheric |stem architecture or shape=pinnate |stem orientation=suberect;ascending |stem variability=differentiated |stem-leaf architecture or arrangement or shape or vernation=plicate |stem-leaf orientation=squarrose |stem-leaf shape=ovate |stem-leaf width=widest |whole_organism coloration=dark green;golden |whole_organism growth form=plant |whole_organism reflectance=shiny |whole_organism size=large }}<!-- -->[[Category:Treatment]][[Category:Hypnaceae]] Templates used on this page: Template:Hypnaceae (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) Return to Ptilium.