Adiantum - Adiantaceae

Adiantum balfourii Baker

 

 

 

 

Synonyms

Common name

Description

Fronds monomorphic, closely spaced. Stipe up to 8 cm long, dark brown to black, hairless. Lamina pinnate, linear in outline, up to 20 × 3 cm; pinnae fan-shaped to orbicular in outline, up to 1.5 × 1.8 cm, shortly stalked, margin subentire or sterile ones denticulate and sometimes shallowly lobed along upper margin, hairless. Sori on the inner surface of marginal reflexed lobes; indusium linear, curved.

Notes

This species is pinnate and has pinnae that are quite round.

Derivation

balfourii: named after Sir Isaac Bayley Balfour (1853-1922), Scottish botanist, collected on Rodriguez Island and was one of the first scientists to reach the remote island group of Socotra (1880).

Habitat

On rocks in sheltered places.

Distribution worldwide

Northeast Africa.

Distribution in Africa

Djibouti, Ethiopia, Somalia, Sudan and South Sudan.

Growth form

Lithophytic.

Literature

  • Thulin, M. (1993) Pteridophyta. Flora of Somalia, vol.1 Pages 12 - 13. (Includes a picture).
  •