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30. Radiogrammitis Parris, Gard. Bull. Singapore. 58: 240. 2007.
辐禾蕨属 fu he jue shu
Authors: Shannjye Moore & Barbara S. Parris
Plants small, epiphytic, seldom petrophytic. Rhizomes radial, with stipes in whorls; scales not clathrate, pale to dark reddish brown or yellowish brown, glabrous, sometimes absent. Stipe not articulate, phyllopodia absent. Lamina entire or rarely slightly crenulate; veins simple or 1- or 2-forked, free, endings sometimes with a hydathode on adaxial surface of lamina, or not. Sori superficial or slightly sunken in broad shallow depressions on lamina, on acroscopic vein branch unless fertile veins simple, in 2 rows, 1 each side of midrib. First-developed sporangia usually with 1-3 simple hairs at apex adjacent to annulus, rarely glabrous; later-developed sporangia glabrous. Hairs simple eglandular, either solitary or tufted.
About 28 species: Sri Lanka and China to Australia and Pacific islands; four species (two endemic) in China.
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| 1 |
Lamina margin with only solitary hairs. |
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3 R. setigera |
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Lamina margin with solitary and/or tufted hairs |
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(2) |
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| 2 (1) |
Rhizomes without scales; marginal hairs pale to medium reddish brown, tufted, in 2 lengths. |
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1 R. alepidota |
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Rhizomes with scales; marginal hairs dark reddish brown, simple and tufted, ?all same length |
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(3) |
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| 3 (2) |
Vein endings with hydathodes on adaxial side of lamina, veins 1-forked, branches ?equal in length. |
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2 R. moorei |
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Vein endings without hydathodes on adaxial side of lamina, veins 1-forked, acroscopic branch much shorter than basiscopic branch. |
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4 R. taiwanensis |
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Lower Taxa
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