Coniogramme - Adiantaceae

Coniogramme africana Hieron.

 

 

 

 

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

  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report, 13 Page 73.
  • 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.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta. Flora Zambesiaca, 0 Page 102. (Includes a picture).
  • Verdcourt, B. (2002) Adiantaceae. Flora of Tropical East Africa, Pages 48 - 49. (Includes a picture).
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