Difference between revisions of "Ctenitis"

(C. Christensen) C. Christensen in Verdoorn et al.

in Verdoorn et al.,Man. Pteridol. 543. 1938.

Common names: Comb fern
Etymology: Greek kteis, comb
Basionym: Dryopteris subg. Ctenitis C. Christensen
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="plant growth form or habitat"><b>Plants </b>generally terrestrial.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem orientation;stem orientation;stolon count"><b>Stems </b>erect to obliquely ascending, stolons absent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf architecture;leaf duration;leaf condition"><b>Leaves </b>monomorphic, evergreen or dying back in winter.</span> <span class="statement" id="st-d0_s3" data-properties="petiole count;blade length;base shape"><b>Petiole </b>2/3 to equaling 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 an arc, ± round in cross-section.</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade shape;blade shape;blade shape;blade size;blade growth form or texture;apex arrangement;apex shape"><b>Blade </b>lanceolate to deltate, 1–4-pinnate-pinnatifid, gradually reduced distally to confluent, pinnatifid apex, herbaceous.</span> <span class="statement" id="st-d0_s6" data-properties="pinna architecture;segment margin shape;segment margin shape;segment margin shape;segment margin architecture or pubescence or shape"><b>Pinnae </b>not articulate to rachis, segment margins nearly entire to crenulate, ciliate;</span> <span class="statement" id="st-d0_s7" data-properties="proximal pinna size;pinna position;pinna length;pinna architecture;pinna architecture;pinna architecture;pinna shape;pinna shape;side orientation;side development">proximal pinnae not reduced, sometimes basal pair much the longest, sessile to petiolulate, equilateral or inequilateral with basiscopic side more developed (pinnules noticeably longer);</span> <span class="statement" id="st-d0_s8" data-properties="costa shape;costa shape;costa architecture">costae adaxially rounded or flat, not grooved;</span> <span class="statement" id="st-d0_s9" data-properties="scale shape;scale shape;scale shape;glandular-hair architecture;hair architecture;hair coloration">indument of linear to lanceolate scales and often multicellular glandular-hairs abaxially, of multicellular reddish hairs adaxially.</span> <span class="statement" id="st-d0_s10" data-properties="vein fusion;vein architecture;vein shape"><b>Veins </b>free, simple or forked.</span> <span class="statement" id="st-d0_s11" data-properties="sorus shape;between midrib and margin row count"><b>Sori </b>in 1 row between midrib and margin, round;</span> <span class="statement" id="st-d0_s12" data-properties="indusium shape;indusium fixation;indusium size;indusium count;indusium duration;indusium duration;sinus size or width">indusia round-reniform, attached at narrow sinus, sometimes small or seemingly absent, persistent or caducous.</span> <span class="statement" id="st-d0_s13" data-properties=""><b>Spores </b>brownish, usually spiny, sometimes prominently cristate, rarely finely reticulate.</span> <span class="statement" id="st-d0_s14" data-properties="spore coloration;spore architecture or shape;spore shape;spore architecture or coloration or relief;x chromosome count">x = 41.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>generally terrestrial. <b>Stems</b> erect to obliquely ascending, stolons absent. <b>Leaves</b> monomorphic, evergreen or dying back in winter. <b>Petiole</b> 2/3 to equaling length of blade, base not swollen; vascular bundles more than 3, arranged in an arc, ± round in cross section. <b>Blade</b> lanceolate to deltate, 1–4-pinnate-pinnatifid, gradually reduced distally to confluent, pinnatifid apex, herbaceous. <b>Pinnae</b> not articulate to rachis, segment margins nearly entire to crenulate, ciliate; proximal pinnae not reduced, sometimes basal pair much the longest, sessile to petiolulate, equilateral or inequilateral with basiscopic side more developed (pinnules noticeably longer); costae adaxially rounded or flat, not grooved; indument of linear to lanceolate scales and often multicellular glandular hairs abaxially, of multicellular reddish hairs adaxially. <b>Veins</b> free, simple or forked. <b>Sori</b> in 1 row between midrib and margin, round; indusia round-reniform, attached at narrow sinus, sometimes small or seemingly absent, persistent or caducous. <b>Spores</b> brownish, usually spiny, sometimes prominently cristate, rarely finely reticulate. <b>x</b> = 41.</span><!--
  
 
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|publication year=1938
 
|publication year=1938
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_535.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_535.xml
 
|genus=Ctenitis
 
|genus=Ctenitis
|apex arrangement=confluent
 
|apex shape=pinnatifid
 
|base shape=not swollen
 
|between midrib and margin row count=1
 
|blade growth form or texture=herbaceous
 
|blade length=equaling
 
|blade shape=1-4-pinnate-pinnatifid;lanceolate;deltate
 
|blade size=reduced
 
|costa architecture=not grooved
 
|costa shape=flat;rounded
 
|glandular-hair architecture=multicellular
 
|hair architecture=multicellular
 
|hair coloration=reddish
 
|indusium count=absent
 
|indusium duration=caducous;persistent
 
|indusium fixation=attached
 
|indusium shape=round-reniform
 
|indusium size=small
 
|leaf architecture=monomorphic
 
|leaf condition=dying
 
|leaf duration=evergreen
 
|petiole count=2/3
 
|pinna architecture=sessile;petiolulate
 
|pinna length=longest
 
|pinna position=basal
 
|pinna shape=inequilateral;equilateral
 
|plant growth form or habitat=terrestrial
 
|proximal pinna size=not reduced
 
|scale shape=linear;lanceolate
 
|segment margin architecture or pubescence or shape=ciliate
 
|segment margin shape=nearly entire;crenulate
 
|side development=developed
 
|side orientation=basiscopic
 
|sinus size or width=narrow
 
|sorus shape=round
 
|spore architecture or coloration or relief=reticulate
 
|spore architecture or shape=spiny
 
|spore coloration=brownish
 
|spore shape=cristate
 
|stem orientation=erect;obliquely ascending
 
|stolon count=absent
 
|vascular-bundle arrangement=arranged
 
|vascular-bundle shape=round
 
|vein architecture=simple
 
|vein fusion=free
 
|vein shape=forked
 
|x chromosome count=41
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Dryopteridaceae]]
 
-->[[Category:Treatment]][[Category:Dryopteridaceae]]

Revision as of 14:23, 27 July 2019

Plants generally terrestrial. Stems erect to obliquely ascending, stolons absent. Leaves monomorphic, evergreen or dying back in winter. Petiole 2/3 to equaling length of blade, base not swollen; vascular bundles more than 3, arranged in an arc, ± round in cross section. Blade lanceolate to deltate, 1–4-pinnate-pinnatifid, gradually reduced distally to confluent, pinnatifid apex, herbaceous. Pinnae not articulate to rachis, segment margins nearly entire to crenulate, ciliate; proximal pinnae not reduced, sometimes basal pair much the longest, sessile to petiolulate, equilateral or inequilateral with basiscopic side more developed (pinnules noticeably longer); costae adaxially rounded or flat, not grooved; indument of linear to lanceolate scales and often multicellular glandular hairs abaxially, of multicellular reddish hairs adaxially. Veins free, simple or forked. Sori in 1 row between midrib and margin, round; indusia round-reniform, attached at narrow sinus, sometimes small or seemingly absent, persistent or caducous. Spores brownish, usually spiny, sometimes prominently cristate, rarely finely reticulate. x = 41.

Distribution

Nearly worldwide in the tropics.

Discussion

Species ca. 100 (2 in the flora).

Selected References

None.

Key

1 Blades ovate-lanceolate, 2-4-pinnate-pinnatifid; basal pinnae inequilateral, elongate basiscopically. Ctenitis sloanei
1 Blades oblong or narrowly lanceolate, 1-pinnate-pinnatifid; basal pinnae equilateral. Ctenitis submarginalis