Adiantum vogelii Mett. ex Keyserl.
Photo: BT. Wursten
Dem. Republic of Congo
Photo: BT. Wursten
Dem. Republic of Congo
Photo: BT. Wursten
Dem. Republic of Congo
Synonyms |
Adiantum tetraphyllum Willd. var. obtusum Mett. ex Kuhn |
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Common name |
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Description |
Rhizome long creeping; rhizome scales black, hairlike, 2-3 mm long. Frond monomorphic, closely spaced, regularly bipinnate with alternate branches, 20-60 cm long. Stipe usually angular, 5-25 cm long, dark brown, hairy. Lamina bipinnate; pinnae 2-4 pair lateral resembling the terminal, linear in outline, alternate, 8-10 x 2-3cm; pinnules rhomboid to subrectangular in outline, upper and outer margin toothed, lower margin entire, 5-15(-25) x 5(-12) mm, hairless; stalklets 0,5-1 mm long; rhachis not winged, hairy; veins simple or forked. Sori more or less curved, 1.5-3 mm wide. |
Notes | A. vogelii is regurlarly bipinnate! |
Derivation | vogelii: named after J.R.T. Vogel (1812-1841), German explorer, botanist and plant collector. He was one of many to die on the Niger Expedition in 1941. |
Habitat | Sandy banks by forest rivulets, cave walls. |
Distribution worldwide | See African distribution. |
Distribution in Africa |
Angola, Benin, Cameroon, Central African Republic, Congo, Dem. Republic of Congo, Equatorial Guinea (incl. Bioko), Gabon, Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Senegal, Sierra Leone, Tanzania , Togo, Uganda. |
Growth form |
Terrestrial. |
Literature |
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