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Synonyms: |
Alsophila dregei (Kunze) R. M. Tryon Cyathea angolensis Welw. ex Hook. Cyathea burkei Hook. Cyathea dregei Kunze var. polyphlebia (Baker) C.Chr. Cyathea dregei Kunze var. segregata (Baker) C.Chr |
Common names: | Grassland tree fern (English) |
Frequency: | |
Status: | Native |
Description: |
Tree fern. Caudex thick, stout, 5 m × 45 cm. Fronds coriaceous, in whorls. Stem without spines and without aphlebia in the crown of the caudex. Stipe rough, 30-45 cm long, pale matt brown; basal castaneous, shiny, twisted, up to 40 mm long, apices attenuate. Lamina 1.5-3 m × 0.5-0.7 m, 3-pinnatifid to 3-pinnate, elliptic in outline. Ultimate lobes adnate along the costules, oblong, acute, somewhat falcate, margins entire to minutely lobed; costules and veins below with light brown hair-like scales. Sori up to 10 per lobe, round, cup-shaped, situated in 2 rows along each side of the costule; indusium cup-shaped. |
Notes: | This species has a thick trunk and tendency to grow in full sun |
Derivation of specific name: | dregeana: after Johann Franz Drège (1794-1881), German horticulturalist, botanical collector and explorer who worked extensively in South Africa. |
Habitat: | Full sun along open streambanks in high rainfall grassland, occasionaly in scrub along mountain streams and forest edge. |
Altitude range: (metres) | Up to 2380 m |
Worldwide distribution: | Angola, Bioko, Burundi, Cameroon, Congo, DRC, Ghana, Guinea, Lesotho, Liberia, Malawi, Mozambique, Nigeria, Rwanda, Sierra Leone, South Africa, Eswatini, Tanzania, Uganda, Zambia, Zimbabwe, Madagascan region |
Zimbabwe distribution: | N,W,C,E,S |
Growth form(s): | Tree, terrestrial. |
Endemic status: | |
Red data list status: | Lower Risk - near threatened |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Images last updated: | Sunday 1 August 2010 |
Literature: |
Biegel, H.M. (1977). Check-list of ornamental plants used in Rhodesian parks and gardens. Rhodesia Agricultural Journal. Research Report No. 3. Page 21. Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Pages 84 - 86. (Includes a picture). Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 84. Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 27. Burrows, J.E., Burrows, S.M., Lötter, M.C. & Schmidt, E. (2018). Trees and Shrubs Mozambique Publishing Print Matters (Pty), Cape Town. Page 30. (Includes a picture). Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 18. Chapano, C. & Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 11. Coates Palgrave, K. (revised and updated by Meg Coates Palgrave) (2002). Trees of Southern Africa 3rd edition. Struik, South Africa Pages 72 - 73. (Includes a picture). Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 270 - 271. (Includes a picture). Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 10. 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. Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 231. Golding, J.S. (ed.) (2002). Zimbabwe Plant Red Data List. Southern African Plant Red Data Lists. SABONET 14 Page 173. Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 201 - 202. As Alsophila (Kunze) Tryon (Includes a picture). Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Pages 80 - 81. 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 6. Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 86. (Includes a picture). Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 63. As Alsophila dregei (Kunze) R.M.Tyron Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 74. (Includes a picture). Timberlake, J.R., Bayliss, J., Dowsett-Lemaire, F., Congdon, C., Branch, B., Collins, S., Curran, M., Dowsett, R,J., Fishpool, L., Francisco, J., Harris, Kopp, M. & de Sousa, C. (2012). Mt Mabu, Mozambique: Biodiversity and Conservation Report produced under the Darwin Initiative Award 15/036. Royal Botanic Gardens, Kew, London Page 71. White, F. (1962). Forest Flora of Northern Rhodesia Oxford Univ. Press. Page 1. White, F., Dowsett-Lemaire, F. & Chapman, J.D. (2001). Evergreen forest flora of Malawi Royal Botanic Gardens, Kew Page 78. Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 78. |
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