Antrophyum - Adiantaceae

Antrophyum mannianum Hook.

Photo: P. Ballings
Zimbabwe

Photo: P. Ballings
Zimbabwe

Photo: P. Ballings
Zimbabwe

 

 

 

 

Synonyms

Antrophyum meniscium Mett. ex Kuhn
Scoliosorus mannianum (Hook.) E.H. Crane

Common name

Description

Rhizome short, creeping, up to 8 mm in diameter; rhizome scales black, ciliate, narrow and tapering to a sharp tip, up to 6 mm long. Fronds tufted, simple, usually hanging, with a stipe. Stipe up to 27.5 cm long, brown, shiny, without hairs or scales. Lamina simple, papery when dry, 11-29 × 5-23.5 cm, rhombic to round but apex abruptly tapering to a sharp point, base broadly wedge-shaped, margins wavy to crenate, hairless. Sori superficial, linear, along the veins forming an irregular network.

Notes

A. mannianum is rhombic to round in outline, midrib is not raised, sori not in grooves, long stipe present.

Derivation

mannianum: named after Gustav Mann, German botanist.

Habitat

On moist rocks near streams, deep shade in forest.

Distribution worldwide

Tropical Africa

Distribution in Africa

Burundi, Cameroon, Congo, Democratic Republic of Congo, Equatorial Guinea (incl. Bioko), Ethiopia, Gabon, Guinea, Ivory Coast, Kenya, Liberia, Malawi, Mozambique, Nigeria, Rwanda, Sierra Leone, Tanzania , Uganda.

Growth form

Epiphytic, lithophytic.

Literature

  • Roux, J.P. (2000) Pteridophyta; a new combination and new records for the flora of Malawi. Bothalia, 30(2) Page 155.
  • 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 72.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta. Flora Zambesiaca, 0 Pages 96 - 98. (Includes a picture).
  • Verdcourt, B. (1999) Vittariaceae. Flora of Tropical East Africa, Pages 7 - 9. (Includes a picture).
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