Polypodiaceae
水龍骨科
特徵描述
註：依本站目前採用的分類系統，本科部分屬在《Flora of Taiwan》中分屬不同科，因此以下依植物誌使用的科名分列特徵描述。
[ Grammitidaceae 禾葉蕨科 ]
作者
SHIEH, WANG-CHUENG, CHIOU, WEN-LIANG and DEVOL, CHARLES E.
型態特徵
Mostly small epiphytes growing on tree trunks with mosses and liverworts, or on rocks; rhizome short-creeping or suberect; scales usually opaque or sometimes clathrate with clear lumen. Stipes tufted or approximate, usually not articulate to rhizome; fronds simple, pinnate or rarely bipinnate; venation often hidden, usually free; patent hairs usually borne on stipe, rachis and one or both surfaces of lamina. Sori round, oval or linear, dorsal or marginal, superficial or immersed; sporangia often setose; spores tetrahedral. Prothallia filamentous, branched, not cordate.
屬
A family of tropical ferns with about ten genera, six in Taiwan.
參考文獻
[ Polypodiaceae 水龍骨科 ]
作者
SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG
型態特徵
Usually epiphytes, growing on tree trunks, or moss-covered rocks, some terrestrial; rhizome dictyostelic, usually creeping; scales peltate, often clath rate. Fronds often simple (not lobed), pinnatifid, pinnate or rarely digitately lobed; stipes usually articulate to rhizome; veins anastomosing with included veinlets (venation pattern varies with the genera, often hidden). Sori usually round, oval or linear, and in some genera acrostichoid; exindusiate; peltate, clathrate paraphyses often present.
參考文獻
Pyrrosia 石葦屬
作者
SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG
型態特徵
Small ferns of fleshy or coriaceous texture, growing on trees or rocks; rhizome creeping, scales entire or fringed not clathrate. Stipes articulate to short phyllopodia; fronds usually simple, rarely palmately or hastately lobed, covered with stellate hairs, especially when young; venation anastomosing, areolae with included veinlets, hidden, lateral veins visible in some species; pitted hydathodes borne on upper surface in some species. Sori round or oval, usually borne on upper half of frond, superficial or somewhat immersed, more or less covered with stellate hairs at least when young.
A genus of about 100 species, eight in Taiwan.
