Adiantum - Adiantaceae

Adiantum concinnum Willd.

 

 

 

 

Synonyms

Common name

Description

Rhizome thick, compact or shortly creeping; rhizome scales linear-lanceolate in outline, margins entire, (1.5–)3–4 × 0.8–1 mm, uniform brown. Fronds monomorphic, tufted, arching or pendent, 20–95 cm long. Stipe 1/4 to 1/3 the length of the frond, chestnut-brown to purple-black, shining, hairless, with a few broad scales at the base. Lamina 2–3-pinnate, lanceolate to ovate-lanceolate in outline, apex long-attenuate, 6–25 cm wide; pinnae in 10–15 pairs, gradually reduced, alternate, hairless, the basal pinnule overlapping the rhachis; pinnules obovate to oblong or rhombic-ovate, base cuneate, margin lobed and incised, sterile segments finely toothed, 0.7–2.5 x 0.5–1.8 cm, shortly stalked, the colour of the stalk running into the segment base, hairless; veins running into the sinuses. Sori kidney-shaped; indusium 1–1.5 mm wide, often whitish, hairless, thin, entire with abruptly flaring margins.

Notes

Verdcourt, B. (2002) decided that the specimens examened for F.T.E.A. were close to A. concinnum. Not found in African Plant database or Roux (2009)

Derivation

Habitat

Naturalised in old plantations.

Distribution worldwide

Africa, Central and western S America, West Indies; introduced elsewhere and occasionally naturalised.

Distribution in Africa

Tanzania .

Growth form

Terrestrial.

Literature

  • Verdcourt, B. (2002) Adiantaceae. Flora of Tropical East Africa, Page 62.
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