特徵描述
作者
TSAI, JINN-LAI and SHIEH, WANG-CHUENG
型態特徵
Terrestrial ferns; rhizomes usually creeping but not dorsiventral in structure, dictyostelic; rhizome-scales usually rigid, not peltate at the base, bearing unicellular needle-like hairs on margins and often on surfaces. Stipes containing 2 vascular bundles at the base and uniting to form a single strand U-shaped in section; laminae usually oblong or narrowly elliptic in outline, bipinnatifid, rarely bipinnate; surfaces bearing slender unicellular or rarely 2-celled hairs, sometimes also short glandular hairs; costae raised on upper surface at base, grooved or not, if grooved, not open to the groove of rachis; veins all free, pinnately arranged in each lobe of pinnae, or with veins of adjacent groups joining to form an areele towards the sinus between the lobes; sinuses closed at the base by a translucent membrane. Sori usually subapical on the veins, round or somewhat elongate; indusia renifonm, rarely naked. Spores always bilateral with perispore.
屬
A family of 26 genera, pantropical, 11 in Taiwan.
參考文獻
Thelypteris 金星蕨屬
作者
TSAI, JINN-LAI and SHIEH, WANG-CHUENG
型態特徵
Rhizomes creeping, ascending or erect, scaly, the scales often pubescent. Fronds more or less close together or tufted; laminae usually pinnate to tripinnatifid; pinnae sessile, the lobes dentate or serrate, scaly on rachises and costae, pubescent on the laminar surfaces; venation free, the lateral veins in the lobes usually simple, rarely forked, reaching the margin above the sinus, or the lower veins connivent to the sinus. Sori dorsal on the lateral veins, small, round or rarely elongate; indusia orbicular-reniform or absent; sporangia often with glands or setiform hairs.
