Pteris - Pteridaceae

Pteris bavazzanoi Pic.Serm.

 

 

 

 

Synonyms

Pteris kilemensis Bonap.

Common name

Description

Rhizome creeping; rhizome scales pale brown or chestnut, lanceolate in outline with long hair tip. Fronds spaced or tufted, 0.6–1.2 m tall. Stipe straw-coloured, sometimes darker at base and with few scales near rhizome, 25–95 cm long. Lamina ovate in outline, 14–48 x 10–38 cm, 2–4-pinnatipartite at base, 1–2-pinnate above; pinnae lanceolate in outline, 6–13 x 2–3.5 cm; segments of pinnae or pinnules 3–14-jugate, ± oblong to linear-lanceolate, 0.5–2.5 x 0.3–0.5 cm, the terminal segment linear-lanceolate, 2.5–3.5 x 0.3 cm, all spinulose-mucronate at apex; sterile margins spinulose-serrate; costa and costules spinulose above, the former deeply channelled; veins free. Sori reaching nearly the apex of the segments, the sterile tips spinulose-serrate and mucronate.

Notes

Derivation

bavazzanoi: first collected by Mr. Bavazzano on Mt. Meru, Tanzania.

Habitat

Forest of Prunus africana, Nuxia, Olea, Podocarpus, Afrocrania, ..., often on steep slopes of ravines, bases of lava cliffs.

Distribution worldwide

See African distribution.

Distribution in Africa

Tanzania .

Growth form

Terrestrial.

Literature

  • Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23, South African National Biodiversity Institute, Pretoria. Pages 169 - 170.
  • Verdcourt, B. (2002) Pteridaceae. Flora of Tropical East Africa, Page 21.
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