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Ctenopterella Pediculata
''Ctenopterella'' is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). It is known from Africa through southeast Asia and Oceania to Polynesia. Description The rhizomes are dorsiventral (having upper and lower surfaces clearly distinct in appearance), and bear two rows of stipe (botany), stipes, which sometimes have distinct joints where they attach. Distinct phyllopodia are present in some below the joint. The rhizome scales are brown, glabrous, and dull to glossy. Hairs, where present, are unbranched and branched, from whitish to brown in color. The leaf blades range from pinnatifid to pinnate-pinnatifid in cutting, bearing free veins which usually end in hydathodes on the upper surface of the leaf. Sori are borne beneath pinnae or lobes, sometimes slightly sunken into the leaf tissue, usually in two rows but rarely in one. The sorus, sori are circular to elliptic in shape; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenopterella Blechnoides
''Ctenopterella'' is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). It is known from Africa through southeast Asia and Oceania to Polynesia. Description The rhizomes are dorsiventral (having upper and lower surfaces clearly distinct in appearance), and bear two rows of stipes, which sometimes have distinct joints where they attach. Distinct phyllopodia are present in some below the joint. The rhizome scales are brown, glabrous, and dull to glossy. Hairs, where present, are unbranched and branched, from whitish to brown in color. The leaf blades range from pinnatifid to pinnate-pinnatifid in cutting, bearing free veins which usually end in hydathodes on the upper surface of the leaf. Sori are borne beneath pinnae or lobes, sometimes slightly sunken into the leaf tissue, usually in two rows but rarely in one. The sori are circular to elliptic in shape; the sporangia lack h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |