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31. Calymmodon C. Presl, Tent. Pterid. 203. 1836.

荷包蕨属 he bao jue shu

Authors: Shannjye Moore & Barbara S. Parris

Plectopteris Fée.

Plants small, epiphytic. Rhizomes radial, with stipes in whorls; scales not clathrate, pale reddish brown, glabrous or with 1 or more hairs at apex. Stipe very short, ± winged to base, not articulate; phyllopodia absent. Lamina attenuate gradually to apex and base, deeply pinnately divided to narrow wing along rachis; pinnae entire, with 1 simple vein, each vein ending with a hydathode, often very indistinct, on adaxial surface of lamina; fertile pinnae folded toward lamina apex and covering sori. Sori oval or elliptic, 1 sorus per pinna. Sporangia glabrous. Hairs simple eglandular, and 1- or 2-forked with eglandular branches.

About 30 species: Sri Lanka and China to Australia and Pacific islands; three species in China.

1 Lamina with hairs occasional to scattered on all parts, hairs on abaxial surface of lamina 0.5-1 mm.   2 C. gracilis
+ Lamina glabrous or sparsely hairy, hairs absent from abaxial surface of lamina or 0.1-0.2 mm   (2)
2 (1) Hairs on abaxial surface of rachis 0.1-0.2 mm, adaxial surface of rachis glabrous or with hairs ca. 0.1 mm.   1 C. asiaticus
+ Hairs on abaxial surface of rachis 0.1-0.8 mm, adaxial surface of rachis with hairs 0.1-0.9 mm.   3 C. ordinatus

Lower Taxa


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