特徵描述
作者
SHIEH, WANG-CHUENG
型態特徵
Terrestrial ferns; rhizome erect or creeping, solenostelic or dictyostelic, clothed with scales. Fronds uniform or subdimorphic, 1-3-pinnate or variously divided, not articulate to rhizome; veins free or anastomosing without included free veinlets. Sori round or oblong, borne on distal ends or on the apical parts of veins, or forming continuous conenosori borne on the vascular commissure connecting the vein-ends, without true indusium, but protected by the modified and sharply reflexed leaf-margin and opening introrsely; sporangia developing in mixed sequence, with vertical annulus. Spores tetrahedral or rarely bilateral.
屬
A family of about 20 genera and 650 species, mainly tropical in distribution; six genera and 42 species in Taiwan.
參考文獻
Onychium 金粉蕨屬
作者
SHIEH, WANG-CHUENG
型態特徵
Rhizome creeping or ascending, solenostelic, clothed with scales. Fronds moderate size, tripinnate or more compound, glabrous, herbaceous or subcoriaceous; veins free. Sori submarginal, continuous along both margins, as a vascular commissure connecting the vein-endings, protected by the scarious reflexed margin of the lamina, the ultimate so small and narrow that the pseudoindusium on each pinnule meet on the costa, without paraphyses; annulus of 16-20 thickened cells. Spores tetrahedral, with ribbed or tuberculate epispore.
