作者

DEVOL, CHARLES E. and SHIEH, WANG-CHUENG

型態特徵

Terrestrial ferns forming thickets, usually growing on exposed hillsides; rhizomes long-creeping, usually growing near surface of soil, protostelic (1 exception), covered with branched hairs or fringed scales; stipes usually distant, slender, terete, wiry; c.s. of base of stipe with 1 C-shaped bundle with inrolled ends. Fronds pseudo-dichotomously branched, with a dormant apical bud between branches; apical bud covered with hairs or scales and often with stipule-like bracts; the dormant bud giving rise to an extension of the rachis at a later season, thus producing a very long rachis with side branches; ultimate branches pinnatifid or bipinnatifid, cut nearly to costa; veins free, simple or forked. Sori on back of veins, exindusiate; sporangia few per sorus (2-15), subsessile or with very short stalk; annulus complete, oblique, dehiscing vertically. Spore number large (200-800), trilete or monolete, smooth. Mature gametophyte ribbon-like with midrib.

屬

Considered as having one to six genera depending on concept of author. One hundred and twenty species. The genus Stromatopteris (not found in Taiwan) is usually placed in this family but differs so much from the others that it is not included in the above family description.

參考文獻