Athyriaceae
蹄蓋蕨科
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.
