Crepidomanes - Hymenophyllaceae

Crepidomanes frappieri (Cordem.) J.P. Roux

 

 

 

 

Synonyms

Vandenboschia frappieri (Cordem.) Pic.Serm.
Trichomanes frappieri Cordem
Vandenboschia ramitricha (Faden) Pic.Serm.
Trichomanes ramitrichum Faden
Crepidomanes ramitrichum (R.B.Faden) Beentje

Common name

Description

Rhizome filiform, less than 0.5 mm in diameter, covered in dark brown trichomes to 1.5 mm, some of these branched. Fronds spaced up to 2 cm apart, frond axes not proliferous. Stipe dark green, blackish at base, 2–25 mm long, winged in upper part, with scattered minute clavate hairs. Lamina ovate to linear in outline, 2–14 x 0.8–3 cm, flabellately divided or 2–3-pinnatifid, ultimate segments linear; longitudinal drying folds present; glabrous except for some minute hairs on the veins. Sori terminal on basal acroscopic pinnule lobes, sometimes also on (sub)terminal pinna lobes; indusium tubular, 2–2.5 mm long, 1.5 times as long as wide, winged, mouth bilabiate, usually not spreading; receptacle exserted.

Notes

We follow African Plant database and J.P.Roux, who consider the species from Africa and Réunion as the same species. Flora Tropical East Africa has C. frappieri as from Réunion and C. ramitrichum from Africa.

Derivation

frappieri: named after Frappier, with no further certain information. This might be Charles Frappier de Mont Benoist (1813-1885) or Alphonse Frappier (fl. 1853-1895), 2 French botanists.

Habitat

Moist deeply shaded montane forest, near water, or rock faces by falls.

Distribution worldwide

Africa, Madagascar, Réunion.

Distribution in Africa

Burundi, Democratic Republic of Congo, Kenya, Malawi, Mozambique, Rwanda, Tanzania , Uganda, Zambia, Zimbabwe.

Growth form

Epiphytic, lithophytic.

Literature

  • Beentje, H.J. (2008) Hymenophyllaceae. Flora of Tropical East Africa, Pages 19 - 22. As Crepidomanes ramitrichum (R.B.Faden) Beentje comb.nov. (Includes a picture).
  • Kornas, J. (1979) Distribution and ecology of the Pteridophytes in Zambia. Polska Akademia Nauk Wydzial II Nauk Biologicznych. Page 73. As Trichomanes ramitrichum
  • 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 39.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report, 13 Page 45.
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