Difference between revisions of "Ctenitis"

(C. Christensen) C. Christensen

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

Common names: Comb fern
Etymology: Greek kteis, comb
Basionym: Dryopteris subg. Ctenitis C. Christensen in L. K. Rosenvinge, Biol. Arb. Tilegn. Eug. Warming, 79. 1911
Treatment appears in FNA Volume 2.
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{{Treatment/ID
 
{{Treatment/ID
 
|accepted_name=Ctenitis
 
|accepted_name=Ctenitis
|accepted_authority=(C. Christensen) C. Christensen in Verdoorn et al.
+
|accepted_authority=(C. Christensen) C. Christensen
 
|publications={{Treatment/Publication
 
|publications={{Treatment/Publication
|title=in Verdoorn et al.,Man. Pteridol.
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|title=in Verdoorn et al., Man. Pteridol.
 
|place=543. 1938
 
|place=543. 1938
 
|year=1938
 
|year=1938
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name=Ctenitis
 
name=Ctenitis
 
|author=Robbin C. Moran
 
|author=Robbin C. Moran
|authority=(C. Christensen) C. Christensen in Verdoorn et al.
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|authority=(C. Christensen) C. Christensen
 
|rank=genus
 
|rank=genus
 
|parent rank=family
 
|parent rank=family
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|distribution=Nearly worldwide in the tropics.
 
|distribution=Nearly worldwide in the tropics.
 
|reference=None
 
|reference=None
|publication title=in Verdoorn et al.,Man. Pteridol.
+
|publication title=in Verdoorn et al., Man. Pteridol.
 
|publication year=1938
 
|publication year=1938
 
|special status=
 
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V2/V2_535.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_535.xml
 
|genus=Ctenitis
 
|genus=Ctenitis
 
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-->[[Category:Treatment]][[Category:Dryopteridaceae]]
 
-->[[Category:Treatment]][[Category:Dryopteridaceae]]

Latest revision as of 21:24, 5 November 2020

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