Home | > | List of families | > | Adiantaceae | > | Adiantum | > | mendoncae |
Synonyms: | |
Common names: | |
Frequency: | Rare |
Status: | Native |
Description: |
Rhizome short, erect; rhizome scales dark brown. Fronds tufted, herbaceous. Stipe up to 15 cm long, dark brown, glabrous except for narrow, hairlike scales towards the base. Lamina pinnate, narrowly lanceolate to oblong in outline; 30 × 5 cm, excluding a glabrous extension of the rhachis of varying length, which often ends in a proliferous bud or lamina with a terminal pinna. Rhachis, petiole and pinnae glabrous. Pinnae numerous (up to 20 pairs), broadly obcuneate to roughly obtriangular, with thin dark brown petiole up to 7 mm long, alternate; 2 × 1.4 cm, reduced in size towards the apex, margin of the sides entire, outer margin convex and finely toothed; venation flabellate. Sori on apices of the outer pinna margin, indusial flap short, dark brown, glabrous. |
Notes: | Resembles A. lunulatum which has larger, entire but incised pinnae. A. incisum has more pinae (up to 40 pairs) that are pilose. |
Derivation of specific name: | mendoncae: the plant was collected by Francisco d' Assensão Mendonça in Mozambique in 1942 |
Habitat: | Terrestrial or lithophytic, shaded earth banks in ravines, cliff faces, around boulders, in riverine fringes or Brachystegia woodland. |
Altitude range: (metres) | 340 - 870 m |
Worldwide distribution: | Only known from Zimbabwe and Mozambique |
Zimbabwe distribution: | N,E,S |
Growth form(s): | Lithophyte, terrestrial. |
Endemic status: | Near Endemic |
Red data list status: | |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Images last updated: | Wednesday 11 July 2012 |
Literature: |
Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Pages 120 - 122. (Includes a picture). Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 3. 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 13. Darbyshire, I., Timberlake, J., Osborne, J., Rokni, S., Matimele, H., Langa. C., Datizua, C., de Sousa, C., Alves, T., Massingue, A., Hadj-Hammou, J., Dhanda, S., Shah, T., Wursten, B. (2019). The endemic plants of Mozambique: diversity and conservation status Phytotaxa 136 Page 75. Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 226 - 227. (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 9. Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 75. Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 70. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 111. (Includes a picture). Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 78. |
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