| Home | > | List of families | > | Sinopteridaceae | > | Pellaea | > | angulosa |
| Synonyms: |
Allusorus angulosus (Bory ex Willd.) Kuntze Doryopteris articulata (Kaulf. ex Spreng.) Fée Litobrochia articulata (Kaulf. ex Spreng.) C. Presl. Pellaea articulata (Kaulf. ex Spreng.) Baker Pteris angulosa (Bory ex Willd.) Baker |
| Common names: | |
| Frequency: | Rare |
| Status: | Native |
| Description: |
Rhizome short, creeping, up to 7 mm in diameter; rhizome scales dark brown, subentire, linear, up to 5 mm long. Fronds tufted, erect to suberect, coriaceous. Stipe black, shining, up to 44 cm long, with a few brown scales near the base. Lamina sharply triangular in outline, c. 40 mm long and almost as broad at the base, pinnate in the distal half of the lamina with a single pinna on the top resembling the lateral pinnae, to 3- to 2-pinnate on the lower pinnae. Ultimate segments lanceolate in outline, forming a long drawn out point, cordate base articulated to a short black petiole, glabrous on both surfaces, veins hardly visible, anastomosing. Rhachis, secondary rhachis and petioles black, with short brown hairs on the upper surfaces. Sori marginal, continuous to within a few milimeters of the apex and petiole, indusium entire, membranous, continuous. |
| Notes: | Can be seperated from Cheilanthes virides by the articulated pinnae, the obscure and anastomosing venation, the basiscopical developed basal pinnae. |
| Derivation of specific name: | angulosa: strongly angled; an allusion to the sharp angles created by the rhachis, secondary rachises and pinnules. |
| Habitat: | In tall, evergreen forest dominated by Chrysophyllum gorungosanum, on moist forest floor where an opening in the forest canopy occurs. |
| Altitude range: (metres) | 1370 - 1400 m |
| Worldwide distribution: | Madagascar, Malawi, Mauritius, Mozambique, Réunion, Seychelles (Mahé), Tanzania, Zimbabwe. |
| Zimbabwe distribution: | E |
| Growth form(s): | Terrestrial. |
| Endemic status: | |
| Red data list status: | Vulnerable |
| 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 172. (Includes a picture). Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 89. Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 43. 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 14. Golding, J.S. (ed.) (2002). Zimbabwe Plant Red Data List. Southern African Plant Red Data Lists. SABONET 14 Page 168. Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Page 272. (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 70. Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Pages 188 - 189. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 131. (Includes a picture). |
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