Elaphoglossum lastii (Baker) C. Chr.
Synonyms |
Acrostichum lastii Baker |
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Common name |
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Description |
Rhizome creeping, 5-8 mm in diameter; rhizome scales 4-6 mm long, appressed, reddish-brown or black, narrowly lanceolate in outline with slender hair-like contorted tips, margins entire or with kinky hair-like processes; phylopodia present, 1-4.5 cm long, blackish. Fronds spaced apart, erect or arching, coriaceous, simple, dimorphous. Sterile frond: stipe up to 18 cm long, straw-coloured, with scattered brown scales like those on rhizome when young, often dense at stipe base and scattered distally; lamina up to 10-38 × 1.7-5.5 cm, narrowly elliptic-oblong in outline, apex rounded, base wedge-shaped, margin with a pale inrolled edge, subglabrous with minute brown scales below; veins 1.5 mm apart, at 85° angle to the costa; hydathodes absent. Fertile frond: 13-27 x 1.2-2.1 cm, stipe much longer than that of the sterile frond, lamina shorter and narrower than sterile lamina, apex rounded, base wedge-shaped, sori covering the whole undersurface of the lamina, intersporangial scales absent. |
Notes | The rounded apex of the frond distinguishes this fern from other similar species. |
Derivation | lastii: named after J.T. Last (1847-1933), an English plant collector. |
Habitat | Moist evergreen mist forests. |
Distribution worldwide | See African distribution. |
Distribution in Africa |
Cameroon, Dem. Republic of Congo, Equatorial Guinea (incl. Bioko), Ethiopia, Kenya, Malawi, Mozambique, Sudan and South Sudan, Tanzania , Zimbabwe. |
Growth form |
Epiphytic. |
Literature |
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