| Home | > | List of families | > | Pteridaceae | > | Pteris | > | hamulosa |
| Synonyms: |
Pteris acanthoneura Alston Pteris quadriaurita Retz. var. hamulosa H. Christ |
| Common names: | |
| Frequency: | Rare |
| Status: | Native |
| Description: |
Rhizome up to 7 mm. in diameter, suberect, woody; rhizome scales up to 5mm long, narrowly linear subentire to lacerate, with a dark central stripe and pale margins. Stipe straw coloured to pale brown, darker at the base, 30-90 cm long. Frond tufted, erect to arching, thinly coriaceous, 0.6-1.5 m tall. Lamina up to 43 × 25 cm., oblong to broadly ovate in outline, 2-pinnate with 3-4 pairs of pinnae. Lower pinnae forked with the shorter lobe produced basiscopically. Pinnae set at an angle of c. 45º to the rhachis, elliptic to narrowly oblong in outline, apex abruptly ending in a short tip, the upper pinnae narrowly decurrent; costae and sometimes costules spinose on the undersurface; ultimate lobes narrowly oblong in outline, apex rounded to sharply tipped, slightly curved like sickle, glabrous on both surfaces, sterile margins toothed; veins anastomosing only along the costa to form narrow areoles; rhachis stramineous, spinose. Sori marginal, extending for most of the length of the ultimate lobes; indusia entire, membranous. |
| Notes: | This species can be recognized by a 2-pinnate lamina , anastomosing veins and costae that are spinose on the undersurface. |
| Derivation of specific name: | hamulosa: hooked, referring to the spinose rhachis and costae on the undersurface of the fronds. |
| Habitat: | In shade on wet forest floors. |
| Altitude range: | |
| Worldwide distribution: | Angola, Bioko, Burundi, Cameroon, Central African Republic, Congo, Cöte d' Ivoire, DRC, Equatorial Guinea, Ghana, Kenya, Mozambique, Nigeria, Pemba, Sudan, Tanzania, Uganda. |
| Mozambique distribution: | MS |
| Growth form(s): | Terrestrial. |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species |
| Literature: |
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 15. Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 243 - 244. (Includes a picture). Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 81. Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 173. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Pages 120 - 121. |
| Home | > | List of families | > | Pteridaceae | > | Pteris | > | hamulosa |