Home | > | List of families | > | Sinopteridaceae | > | Aleuritopteris | > | farinosa |
Synonyms: |
Allosorus farinosus (Forssk.) C.Presl. Cassebeera farinosa (Forssk.) J.Sm. Cheilanthes farinosa (Forssk.) Kaulf. Pteris farinosa Forssk. |
Common names: | |
Frequency: | |
Status: | Native |
Description: |
Rhizome short, erect, up to 10 mm in diameter, rhizome scales dark-brown, entire, up to 7 mm in length, margins pale. Fronds tufted, erect, arching, herbaceous or thinly coriaceous, up to 40 cm long. Stipe black to castaneous, shiny, with scattered brown scales up to 7 mm long. Lamina lanceolate to narrowly ovate in outline, up to 390 × 180 mm, 2 to 3-pinnatifid; pinnae glabrous, dark matt green above, covered with a white or sometimes pale, yellow powder beneath. Lower pinnae larger than the ones above and more or less basiscopically developed; upper pinnae oblong, decurrent; ultimate lobes oblong, rounded, minutely toothed. Rhachis, costae, costules shiny black and glabrous. Sori small, marginal, in discrete or continuous clusters; indusium small, semi-transparent, variously lacerate. |
Notes: | The powdery underside makes it easy to distinguish this fern from other species. A. welwitschii has creeping rhizome and a brown stipe. |
Derivation of specific name: | farinosa: mealy, referring to the powdery substance on the undersurface of the leaves. |
Habitat: | In Victoria Falls as a terrestrial on open grass banks in the spray of the falls, or as an epiphyte in the forest. Among granite boulders in Brachystegia woodland near Harare and at the foot of the Nyanga Mts. |
Altitude range: (metres) | 880 - 1770 m |
Worldwide distribution: | From China through much of Asia to North Africa going southwards to angola, Zambia, Zimbabwe and Malawi. |
Zimbabwe distribution: | W,C,E |
Growth form(s): | Epiphyte, lithophyte, terrestrial. |
Endemic status: | |
Red data list status: | |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Literature: |
Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Page 128. C. farinosa (Includes a picture). Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 87. Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 40. as Cheilanthes farinosa (Includes a picture). Dowsett-Lemaire, F. (1989). The flora and phytogeography of the evergreen forests of Malawi. I: Afromontane and mid-altitude forests; Bull. Jard. Bot. Nat. Belg. 59(1/2) Page 25. As Cheilantes farinosa Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 247 - 248. As C. farinosa (Includes a picture). Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Pages 47 - 48. As C. farinosa Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 9. Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 68. (Includes a picture). Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 179. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 122. As C. farinosa |
Home | > | List of families | > | Sinopteridaceae | > | Aleuritopteris | > | farinosa |