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
Pronephrium 新月蕨屬
作者
TSAI, JINN-LAI and SHIEH, WANG-CHUENG
型態特徵
Rhizomes creeping, sparsely scaly. Fronds usually pinnate with free apical pinnae, rarely simple; pinnae entire or nearly so, lacking sinus-membranes; venation goniopteroid, the veinlets almost all anastomosing; excurrent veins formed by union of veins from adjacent groups; surfaces sparsely scaly and hairy, the hairs hooked, or curved and spreading. Sori rounded or elongate; indusia often small or lacking; sporangia often bearing stiff fairs.
