| Home | > | List of families | > | Woodsiaceae | > | Diplazium | > | zanzibaricum |
| Synonyms: |
Aspidium sulcinervium Hieron. Asplenium zanzibaricum Baker Cornopteris sulcinervia (Hieron.) Tardieu Diplazium sulcinervium (Hieron.) C.Chr. Dryopteris sulcinervia (Hieron.) C.Chr. |
| Common names: | |
| Frequency: | Rare |
| Status: | Native |
| Description: |
Rhizome erect, with a short caudex up to 60 × 15 cm; rhizome scales dark brown, linear-lanceolate, up to 9mm long, margins entire. Fronds large, tufted, arching, firmly herbaceous. Stipe up to 1m long, pale brown, smooth except for a numerous, dark brown, ciliate, hair-like scales, up to 15 mm long, near the base. Lamina 3-pinnatifid to 3-pinnate, up to 1.5m × 1.2m, broadly ovate in outline. Pinnules 15-20 pairs, ovate-lanceolate, apex pointed, base shortly petiolate, truncate to cordate, cut to the costules into oblong, slightly falcate lobes with rounded apices, margins serrate, glabrous on both surfaces, but costae and costules with scattered, minute scales, veins free. Rhachis pale brown, subglabrous. Sori oblong to linear-oval, 0.7-2 mm long, often acroscopic sori arranged back to back; indusium erose. |
| Notes: | Could be confused with D. nemorale which differs in having longer and fewer sori per lobe and a smooth stipe base. |
| Derivation of specific name: | zanzibaricum: of Zanzibar, where this fern was first collected. |
| Habitat: | Deeply shaded streambanks in wet evergreen forest, often where there is a break in the canopy thus allowing slightly more light. |
| Altitude range: (metres) | 1000 - 2140 m |
| Worldwide distribution: | Widespread in tropical africa, South Africa, Madagascar, Comoro islands. |
| Zimbabwe distribution: | E |
| Growth form(s): | 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. Pages 276 - 278. (Includes a picture). Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 96. Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 28. (Includes a picture). Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 21. Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 720 - 721. (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 16. 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. Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 409 - 410. (Includes a picture). Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Page 105. 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 11. Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 138. (Includes a picture). Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 219. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Pages 205 - 206. (Includes a picture). |
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