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Synonyms: |
Asplenium auriculatum sensu Sim Asplenium preussii Hieron. subsp. austroafricanum Schelpe Asplenium pseudoauriculatum Schelpe Asplenium thunbergii sensu Sim |
Common names: | |
Frequency: | |
Status: | Native |
Description: |
Rhizome erect, up to 10 mm thick; scales c. 3 mm long, brown, entire, subulate. Fronds tufted, proliferous near the apex, the apical segment above the proliferating bud has more than 5 lobes. Stipe up to 20 cm long, stipe and rhachis sparsely set with dark brown scales. Lamina 22-42 cm × 4.5-13 cm, 2-pinnatifid, lanceolate to narrowly elliptic in outline. Pinnae with 6 or more basiscopic pinnae lobes; the first arissing between the 1st-2nd acroscopic lobes. Pinnae variable, from shallowly incised to strongly pinnatifid into narrow simple bifid lobes, basal lobe pointing towards the apex free, 4-fid and larger than the other lobes. Sori one per lobe, linear, set along the veins, indusiate. |
Notes: | Confused with A. dregeanum; A. preussii has the first basal lobe arising between the 1st and 2nd acroscopic lobes. |
Derivation of specific name: | preussii: named after Paul Rudolf Preuss, botanist, horticulturist, first director of Botanic Gardens at Victoria in Cameroon. |
Habitat: | In leaf litter or on boulders in deeply shaded evergreen forest. Terrestrial. |
Altitude range: (metres) | 1000 - 1675 m |
Worldwide distribution: | Bioko, Burundi, Cameroon, Congo, DRC, Ethiopia, Guinea, Kenya, Liberia, Malawi, Mozambique, Nigeria, Rwanda, Sierra Leone, South Africa, Sudan, Tanzania, Uganda, Zimbabwe |
Zimbabwe distribution: | E |
Growth form(s): | Lithophyte. |
Endemic status: | |
Red data list status: | |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Images last updated: | Friday 11 November 2011 |
Literature: |
Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Page 234. (Includes a picture). Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 94. Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 626 - 627. (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 9. 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 Asplenium pseudoauriculatum Fisher E. & Lobin W. (2024). Checklist of Lycopodiopsida (clubmosses and quillworts) and Polypodiopsida (ferns) of Rwanda. Willdenowia 53(3) Page 158. Fisher, E. & Lobin, W. (2023). Synoptic Revision of Aspleniaceae (Asplenium, Hymenasplenium) of Rwanda. Phytotaxa 608 (1) Page 34. Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 373 - 374. (Includes a picture). 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 5. Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 169. Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 94. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 185. (Includes a picture). |
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