| Home | > | List of families | > | Salviniaceae | > | Salvinia | > | hastata |
| Synonyms: |
Salvinia hildebrandtii Baker Salvinia mollis Desv. |
| Common names: | |
| Frequency: | |
| Status: | |
| Description: |
Rhizome c. 1 mm. in diameter, horizontal, upper surface with dark-brown multicellular hairs up to 2 mm. long. Floating leaves up to 2 × 1.3 cm., opposite, oblong in outline, sometimes slightly broadened towards the base, emarginate at the apex, base cordate to almost truncate, flat (or infolded along the midrib when leaves closely spaced), upper surface papillate with minute whitish simple multicellular hairs, pilose beneath with brownish multicellular hairs; submerged leaf up to 6.5 cm. long, dissected, lobes densely set with dark-brown multicellular hairs up to 3 mm. long. Sporocarps spherical, hairy, up to 6, arranged in 2 rows along the midrib of one dissected leaf-lobe. |
| Notes: | Differs from other species by having more oblong leaves with a truncate apex and heartshaped base, the apex of the leaf-papilla does not have an open basket of 4 curved cells. |
| Derivation of specific name: | hastata: spearshaped, not a very good description since the leaves are more heartshaped than spearshaped at the base. |
| Habitat: | Sluggish streams and backwaters. |
| Altitude range: | |
| Worldwide distribution: | Kenya, Malawi, Mozambique, Mascarene Islands, Tanzania |
| Malawi distribution: | C,S |
| Growth form(s): | Aquatic. |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species |
| Literature: |
Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 83. 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 491 - 492. (Includes a picture). Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 178. Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 59. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Pages 67 - 68. (Includes a picture). |
| Home | > | List of families | > | Salviniaceae | > | Salvinia | > | hastata |