View source for Cyrtomium ← Cyrtomium 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=Cyrtomium |accepted_authority=C. Presl |publications={{Treatment/Publication |title=Tent. Pterid. |place=86. 1836 |year=1836 }} |common_names=Asiatic holly fern |basionyms= |synonyms= |hierarchy=Dryopteridaceae;Cyrtomium |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dryopteridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Cyrtomium]]</div></div> |etymology=Greek cyrtoma, arch, for the arched veins |volume=Volume 2 |mention_page= |treatment_page= }}<!-- --><span class="statement" id="st-d0_s0" data-properties="plant growth form or habitat;plant growth form or habitat"><b>Plants </b>terrestrial or on rock.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem orientation;stolon count"><b>Stems </b>erect or ascending, stolons absent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf architecture;leaf duration"><b>Leaves </b>monomorphic, evergreen.</span> <span class="statement" id="st-d0_s3" data-properties="petiole length;base shape"><b>Petiole </b>± 1/2–3/4 length of blade, base not swollen;</span> <span class="statement" id="st-d0_s4" data-properties="vascular-bundle count;vascular-bundle arrangement;vascular-bundle shape">vascular-bundles more than 3, arranged in arc, ± round in cross-section.</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade architecture or shape;pinna shape;distal pinna size;blade texture;blade texture;pinna shape"><b>Blade </b>oblong-lanceolate, 1-pinnate with pinnae not lobed, distal pinnae only slightly smaller, blade ending in basally lobed pinna ± similar to lateral pinnae, papery or somewhat leathery.</span> <span class="statement" id="st-d0_s6" data-properties="pinna architecture;segment margin shape;segment margin architecture or shape"><b>Pinnae </b>not articulate to rachis, segment margins crenate to spinulose, sometimes also coarsely dentate;</span> <span class="statement" id="st-d0_s7" data-properties="proximal pinna size;proximal pinna architecture;proximal pinna architecture or shape;proximal pinna shape;base orientation;base development">proximal pinnae not reduced, petiolulate, equilateral or somewhat inequilateral with acroscopic base more developed;</span> <span class="statement" id="st-d0_s8" data-properties="costa architecture;groove architecture">costae adaxially grooved, grooves continuous from rachis to costae;</span> <span class="statement" id="st-d0_s9" data-properties="indument count;scale shape">indument of filiform scales abaxially, absent adaxially.</span> <span class="statement" id="st-d0_s10" data-properties="vein architecture;included veinlet count"><b>Veins </b>elaborately anastomosing, areoles formed with 1–3 included veinlets.</span> <span class="statement" id="st-d0_s11" data-properties="between midrib and margin sorus shape"><b>Sori </b>in 2 or more rows between midrib and margin, round.</span> <span class="statement" id="st-d0_s12" data-properties="indusium architecture;indusium duration;indusium duration"><b>Indusia </b>peltate, persistent or caducous.</span> <span class="statement" id="st-d0_s13" data-properties="fold shape"><b>Spores </b>brown, with inflated folds or wings.</span> <span class="statement" id="st-d0_s14" data-properties="spore coloration;x chromosome count">x = 41.</span><!-- -->{{Treatment/Body |distribution=North America;Asia;Africa including Madagascar;Pacific Islands (Hawaii). |discussion=<p>This difficult genus requires further systematic study. Estimates of species numbers have ranged from 9 (C. Christensen 1930) to 59 (Shing K. H. 1965). The group might better be considered a subgenus of Polystichum, from which it is poorly differentiated morphologically.</p><!-- --><p>Species ca. 15 (2 in the flora).</p> |tables= |references={{Treatment/Reference |id=ching1936a |text=Ching, R. C. 1936. On the genus Cyrtomium Presl. Bull. Chin. Bot. Soc. 2: 85--106. }}{{Treatment/Reference |id=christensen1930a |text=Christensen, C. 1930. The genus Cyrtomium. Amer. Fern J. 20: 41--52. }}{{Treatment/Reference |id=shing1965a |text=Shing, K. H. 1965. A taxonomical study of the genus Cyrtomium Presl. Acta Phytotax. Sin., Addit. 1: 1--48. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Pinnae 4-10(-12) pairs, leathery, shiny adaxially, margins sometimes undulate or coarsely dentate, but not minutely crenulate or denticulate. |[[Cyrtomium falcatum|Cyrtomium falcatum]] |-id=key-0-1 |1 |Pinnae (8-)10-25 pairs, papery, not shiny adaxially, margins minutely crenulate-denticulate. |[[Cyrtomium fortunei var. fortunei|Cyrtomium fortunei var. fortunei]] |} </div></div><!-- -->{{#Taxon: name=Cyrtomium |author=George Yatskievych |authority=C. Presl |rank=genus |parent rank=family |synonyms= |basionyms= |family=Dryopteridaceae |distribution=North America;Asia;Africa including Madagascar;Pacific Islands (Hawaii). |reference=ching1936a;christensen1930a;shing1965a |publication title=Tent. Pterid. |publication year=1836 |special status= |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_578.xml |genus=Cyrtomium |base development=developed |base orientation=acroscopic |base shape=not swollen |between midrib and margin sorus shape=round |blade architecture or shape=1-pinnate |blade shape=oblong-lanceolate |blade texture=leathery;papery |costa architecture=grooved |distal pinna size=smaller |fold shape=inflated |groove architecture=continuous |included veinlet count=1;3 |indument count=absent |indusium architecture=peltate |indusium duration=caducous;persistent |leaf architecture=monomorphic |leaf duration=evergreen |petiole length=1/2 length of blade;3/4 length of blade |pinna architecture=not articulate |pinna shape=lobed;not lobed |plant growth form or habitat=on rock;terrestrial |proximal pinna architecture=petiolulate |proximal pinna architecture or shape=equilateral |proximal pinna shape=inequilateral |proximal pinna size=not reduced |scale shape=filiform |segment margin architecture or shape=dentate |segment margin shape=crenate to spinulose |spore coloration=brown |stem orientation=ascending;erect |stolon count=absent |vascular-bundle arrangement=arranged |vascular-bundle shape=round |vein architecture=anastomosing |x chromosome count=41 }}<!-- -->[[Category:Treatment]][[Category:Dryopteridaceae]] Templates used on this page: Template:Dryopteridaceae (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 Cyrtomium.