Species

Coniogramme - Adiantaceae

Coniogramme africana Hieron.

Photo: P. Ballings
Rwanda

Synonyms	Asplenium mary-annae G. Kunkel Coniogramme fraxinea (D.Don) Diels Gymnogramme serrulate sensu Kuhn
Common name
Description	Rhizome creeping, up to 8 mm in diameter; rhizome scales about 6 mm long, brown, concolorous, lanceolate in outline, apex gradually tapering to a point. Fronds spaced, 1–4 cm apart, herbaceous, arching. Stipe straw-coloured or tinged purple, up to 45 cm long with scales similar to the rhizome at the base, otherwise glabrous. Lamina 50 x 30 cm or larger, pinnate but with the lowest pair of pinnae pinnatifid. Pinnae oblanceolate or linear-oblong in outline, 10–30 cm long, 2–5 cm wide, abruptly ending in a long tail-like tip at the apex, wedge-shaped at the base, margin minutely toothed, glabrous; veins thickened near margin above. Rhachis straw-coloured, glabrous. Sori linear along the veins, exindusiate.
Notes
Derivation	africana: African
Habitat	Moist rain forest
Distribution worldwide	Widespread in tropical Africa.
Distribution in Africa	Burundi , Cameroon , Dem. Republic of Congo , Equatorial Guinea (incl. Bioko), Ethiopia , Ghana , Kenya , Liberia , Malawi , Nigeria , Rwanda , Tanzania , Uganda .
Growth form	Epiphytic, lithophytic.
Literature	Fisher E. & Killmann D. (2008) Illustrated Field guide to the Plants of Nyungwe National Park Rwanda. University of Koblenz-Landau. Pages 52 - 53. (Includes a picture). Fisher E. & Lobin W. (2024) Checklist of Lycopodiopsida (clubmosses and quillworts) and Polypodiopsida (ferns) of Rwanda.Willdenowia, 53 Page 165. Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23, South African National Biodiversity Institute, Pretoria. Page 106. Roux, J.P. (2001) Conspectus of Southern African Pteridophyta.Southern African Botanical Diversity Network Report, 13 Page 73. Schelpe, E.A.C.L.E. (1970) Pteridophyta.Flora Zambesiaca, 0 Page 102. (Includes a picture). Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3.Flore du Cameroun, Page 132. Verdcourt, B. (2002) Adiantaceae.Flora of Tropical East Africa, Pages 48 - 49. (Includes a picture).