Antrophyum - Adiantaceae

Antrophyum boryanum (Willd.) Spreng. var. obtusum (Willd.) C.Chr.

 

 

 

 

Synonyms

Antrophyum obtusum (Willd.) Spreng.
Hemionitis obtusa Willd.

Common name

Description

Rhizome short; rhizome scales narrowly lanceolate in outline, prolonged into a long flagellum, formed of large cells with thick black walls. Fronds tufted. Lamina oblanceolate in outline, 11–25 × 2–7 cm, apex rounded, base long-decurrent, sessile or subsessile, scaly at extreme base; nerves forming a dens network with very numerous small areoles. Sori rusty brown, very narrow, superficial, reticulate; spores ellipsoid, monolete.

Notes

A. boryanum is obovate-lanceolate, midrib is not raised, sori not in grooves.

Derivation

boryanum: named after a French botanist, J.B.M. Bory de St. Vincent (1780-1846).

Habitat

Evergreen forest of Rapanea, Rauvolfia, Macaranga and Polyscias.

Distribution worldwide

Comoro Isl., Madagascar, Mauritius, Réunion, Tanzania.

Distribution in Africa

Tanzania .

Growth form

Epiphytic.

Literature

  • Verdcourt, B. (1999) Vittariaceae. Flora of Tropical East Africa, Page 9.
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