Difference between revisions of "Ctenitis"
in Verdoorn et al.,Man. Pteridol. 543. 1938.
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|name=Dryopteris subg. Ctenitis | |name=Dryopteris subg. Ctenitis | ||
|authority=C. Christensen | |authority=C. Christensen | ||
| + | |rank=subgenus | ||
|publication_title=in L. K. Rosenvinge, Biol. Arb. Tilegn. Eug. Warming, | |publication_title=in L. K. Rosenvinge, Biol. Arb. Tilegn. Eug. Warming, | ||
|publication_place=79. 1911 | |publication_place=79. 1911 | ||
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|publication year=1938 | |publication year=1938 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V2/V2_535.xml |
|genus=Ctenitis | |genus=Ctenitis | ||
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-->[[Category:Treatment]][[Category:Dryopteridaceae]] | -->[[Category:Treatment]][[Category:Dryopteridaceae]] | ||
Revision as of 20:48, 16 December 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.
Lower Taxa
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 |