作者

DEVOL, CHARLES E. and SHIEH, WANG-CHUENG

型態特徵

Rhizome subterranean creeping, covered with stiff septate hairs, protostelic; stipes usually closely spaced, cross section shows a single round bundle; rachis twining, of indeterminate growth, bearing short sterile and fertile branches, these dimorphic, sterile branches borne lower on rachis; venation usually free, forking. Sporangia borne in 2 rows, each covered by a separate indusium. Spores trilete, subtriangular. Gametophyte a lobed thallus, midrib present.

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