Lastreopsis - Dryopteridaceae

Lastreopsis barteriana (Hook.) Tardieu

 

 

 

 

Synonyms

Polypodium barterianum Hook.
Dryopteris barteriana (Hook.) C.Chr.
Ctenitis barteriana (Hook.) Alston
Nephrodium hendersonii Baker

Common name

Description

Rhizome erect. Fronds monomorphic, tufted, membraneous. Stipe 30-35 cm long, grooved. Lamina bipinnate-bipinnatifid, deltoid in outline, 30-40 x 30 cm; basal pinnae bigger than the one above, pinnate, first pair of pinnules much larger than the next one (to 4-5 cm), lobed; middle pinnae linear-lanceolate in outline, apex pinnatifid, 15-16 x 3 cm, divided into rounded, crenate lobes, making an angle of 90° with the rhachis, dark green when dry, undersurface with red glands, both surfaces with long white hairs; veins simple or forked; costa and costules with long white hairs. Sori small, closer to the veins than to the margin; exindusiate.

Notes

Derivation

Habitat

On ground in forest, c. 300m altitude.

Distribution worldwide

Africa, Madagascar.

Distribution in Africa

Cameroon, Equatorial Guinea (incl. Bioko), Nigeria.

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 133 - 134.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3.Flore du Cameroun, Pages 279 - 280.

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