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Blechnaceae C. Presl
烏毛蕨科
CHIOU, WEN-LIANG, SHIEH, WANG-CHUENG and DEVOL, CHARLES E.
Caudex erect, sometimes a small tree-like trunk, or rhizome creeping or scandent. Fronds
monomorphic or dimorphic, usually pinnate or pinnatifid, rarely simple or bipinnate; stipes scaly at
base, not articulate to rhizome; venation usually free, or with a costal row of areolae. Sori costal,
discrete or in a coenosori; usually with an indusium opening towards costa, rarely exindusiate. Spore
bilaterale. Adult gametophytes cordate.
Nine or ten genera, five in Taiwan.
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| 1 |
Tree ferns with trunk like stem, about 1 m tall; fronds in terminal crown. |
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(2) |
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Rhizome creeping to suberect, not tree-like ferns. |
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(3) |
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| 2 (1) |
Trunk 2-3 cm in diameter; fronds bipinnate or deeply bipinnatifid; sori indusiate. |
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Diploblechnum |
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Trunk about 10 cm in diameter; fronds pinnate; sori exindusiate. |
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Brainea |
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| 3 (1) |
Sori continuous (coenosori). |
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(4) |
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Sori discrete. |
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Woodwardia |
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| 4 (3) |
Fronds monomorphic. |
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Blechnum |
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Fronds dimorphic. |
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Struthiopteris |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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