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18. Polystichum sect. Crucifilix Tagawa, Acta Phytotax. Geobot. 9: 122. 1940.
戟叶耳蕨组 ji ye er jue zu
Plants medium-sized. Lamina papery, bipinnate at base, 1-pinnate upward. Basal pinnae extraordinarily prolonged.
About four species: Asia; three species (one endemic) in China.
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| 1 |
Pinnae coarsely serrate, falcate-lanceolate, acuminate. |
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132 P. tripteron |
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Pinnae toothed, oblong or almost rectangular, acute |
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(2) |
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| 2 (1) |
Basal pinnae 1-pinnate (at least some laminae of same plant with 1-pinnate basal pinnae); sori slightly closer to midrib; indusia much smaller than below; perispore with reticulate sculpture. |
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133 P. hancockii |
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Basal pinnae rarely 1-pinnate; sori closer to pinna margin; indusia 0.6-0.8 mm in diam.; perispore with irregularly perforate sculpture. |
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134 P. normale |
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Lower Taxa
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