Triplophyllum vogelii (Hook.) Holttum
Synonyms |
Aspidium vogelii Hook. |
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Common name |
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Description |
Rhizome long-creeping, slender; rhizome scales ovate in outline, apex tapering to a point, to 3 x 1.7 mm. Fronds monomorphic, spaced, to 80 cm long, herbaceous. Stipe 24–47 cm long, base 5 mm in diameter, decreasing to ± 2 mm below blade, reddish to dark brown, grooved above, near base with narrowly triangular scales to 5 x 1 mm, twisted, otherwise with rather dense hairs to 1 mm long. Lamina 3-pinnate to 4-pinnatifid, deltoid-pentagonal in outline, 30–35 x 25–39 cm, dark green above, mid green below; pinnae 7–10 on each side of the rhachis, near apex gradually grading into decreasing pinnatisect apex; basal pinna pair longest and most divided, each pinna to 24 cm long and curving upward, basal basiscopic pinnule ± 13.5 cm, 2-pinnatifid; second pinna pair with each pinna < 20 cm long, straight, 1-pinnate or with the basal pinnules slightly divided; ultimate segments slightly crenate to almost entire; each segment with a vein with 1–3 lateral veinlets, not reaching margin; rhachis with hairs as on stipe; pinna-costa and costa with dense hairs, glandular, those near branching forks 1.5–2 mm long, smaller on veinlets, insignificant or absent at sinus; upper surface a few large hairs restricted to veins and veinlets. Sori up to 9(–11) per lobe, on veinlets near tip, median, ± 1 mm in diameter; indusium ± 1 mm in diameter, notch to the centre, with ± 8 hairs 0.25–0.45 mm long on margin and ± 8 more such hairs distributed over surface. |
Notes | |
Derivation | vogelii: named after J.R.T. Vogel (1812-1841), German explorer, botanist and plant collector; he first collected this fern in Bioko (Fernando Po). |
Habitat | Moist primary forest. |
Distribution worldwide | Africa, possibly Madagascar. |
Distribution in Africa |
Cameroon, Congo, Equatorial Guinea (incl. Bioko), Gabon, Liberia, Uganda. |
Growth form |
Terrestrial. |
Literature |
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