特徵描述
作者
SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG
型態特徵
Nearly all terrestrial ferns; rhizome usually short and stout, sometimes creeping and slender; scales thin, light brown to dark brown, lanceolate or ovate. Stipes with 2 vascular strands at base and uniting into a single U-shaped strand above; lamina usually thin, pinnate to decompound, rarely simple; veins usually free, goniopteroid in one genus, and forming areolae in two other genera; some species bearing multicellular septae hairs, usually glabrous; rachis groove generally open to receive rachilla grooves but not in all genera. Sori linear, single or double. J-shaped, sub-reniform or round; indusia usually present, sometimes small and fugacious, in Woodsia borne below the sporangia.
屬
A family of about 15 genera, seven in Taiwan.
參考文獻
Cornopteris 貞蕨屬
作者
SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG
型態特徵
Medium sized terrestrial ferns growing in damp woods; rhizome short, creeping or ascending, dictyostelic, scaly. Stipes with 2 linear vascular bundles at base, uniting into a narrow U-shaped bundle in upper stipe; fronds subdeltoid, deeply bipinnatifid to tripinnate; veins free, pinnately forked; rachis with a single dorsal groove open to admit costa grooves; short spines borne on upper surface along costae. Sori round to linear, frequently double, exindusiate.
