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15. Polystichum sect. Cyrtomiopsis Tagawa, Acta Phytotax. Geobot. 9: 121. 1940.
鞭叶耳蕨组 bian ye er jue zu
Plants medium-sized, evergreen. Lamina papery to leathery, 1-pinnate, monomorphic or nearly dimorphic. Rachis of sterile lamina often prolonged and viviparous. Stipe and rachis scales often ciliate on margin. Sori abaxial on veinlets. Indusia small and caducous.
About four species: E Asia; four species (three endemic) in China.
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| 1 |
Lamina monomorphic, linear-lanceolate, 2-4 cm wide, simple to 1-pinnate; pinnae or segments oblong-ovate, acute or obtuse at apex, up to 2.5 cm |
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(2) |
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Lamina nearly dimorphic, broadly oblong-lanceolate, more than 5.5 cm wide, 1-pinnate; pinnae of fertile lamina lanceolate-falcate, acuminate at apex, normally over 4 cm |
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(3) |
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| 2 (1) |
Lamina simple or usually pinnatifid down to rachis in lower part, with appressed segments; segments not auriculate at acroscopic side of base. |
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121 P. basipinnatum |
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Lamina 1-pinnate in lower part, pinnae free, base nearly auriculate on acroscopic side. |
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122 P. conjunctum |
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| 3 (1) |
Lamina thickly papery; pinnae of fertile lamina 6-10 ?1.2-1.8 cm, entire; acroscopic basal vein of each group not reaching pinna margin, sori in 2 rows on each side of midrib or 3 rows in auricle. |
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123 P. lepidocaulon |
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Lamina leathery; pinnae of fertile lamina 4-5 cm, or rarely longer, 0.8-1 cm wide, with acute teeth; acroscopic basal vein of each group reaching pinna margin; sori in 1 row on each side of midrib or sometimes 2 rows in auricle. |
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124 P. putuoense |
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Lower Taxa
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