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Synonyms: |
Aspidium speluncae (L.) Willd. Davallia speluncae (L.) Baker Polypodium speluncae L. |
Common names: | |
Frequency: | |
Status: | |
Description: |
Rhizome widely creeping, 5-10 mm diameter; rhizome hairs few, pale, up to 4 mm long. Fronds widely spaced, membranous. Stipe up to 1 m long, brown, glabrous at maturity. Lamina 1.5 × 1 m, 4-pinnatifid to 4-pinnate, triangular in outline. Ultimate segments oblong-lanceolate, with rounded apex and lobed margins, both surfaces and costules with few, soft hairs. Sori circular, 1 mm diameter, situated at the end of the veins, which also bear a clear gland on the upper surface; indusium cup-shaped and facing outwards. |
Notes: | |
Derivation of specific name: | speluncae: from spelunca, a cave, referring to the sporangia sheltered in the cup-shaped indusium or less likely to the deeply shaded habitat of this fern. |
Habitat: | |
Worldwide distribution: | Widespread in Africa, also in the Madagascan region, pantropical. |
Botswana distribution: | SE |
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. Page 106. (Includes a picture). Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 85. Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 39. Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 282 - 283. (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. Germishuizen, G. & Meyer, N.L. (eds) (2003). Plants of southern Africa: an annotated checklist. Strelitzia 14 Page 70. Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 210 - 211. (Includes a picture). Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Pages 81 - 82. 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 89. (Includes a picture). Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 111. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Pages 89 - 92. (Includes a picture). Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 15. Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 179. |
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