Diplazium - Woodsiaceae

Diplazium ulugurense Verdc.

 

 

 

 

Synonyms

Common name

Description

Rhizome thick and fleshy, erect to ascending; rhizome scales narrowly lanceolate in outline, apex tapering to a point, not black-margined and with few simple trichomes, prominently reticulately nerved, 8–12 x 1.2–2 mm, pale chestnut. Fronds monomorphic, tufted, 1.2 m tall. Stipe 46 cm long, scaly at base. Lamina bipinnate, triangular-ovate in outline, ± 70 x 48 cm, gemmiferous at apices of some pinnae and probably from near apex of frond also; pinnae in ± 13 pairs, oblong-lanceolate, up to 25 x 10 cm, deeply pinnatifid at apex and with ± 6–12 free pinnules beneath, according to position; pinnules oblong, shortly narrowed at the apex, crenate to distinctly pinnatifid, 1.5–5 x 0.7–1.7 cm; ultimate lobes of largest pinnae in ± 7 pairs, ± square, up to 8 x 6 mm, crenate-toothed. Sori elliptic to linear, 1.5–3 mm long, one on acroscopic basal nerve of some ultimate lobes but only about 2–5 per pinnule, the upper sori quite small; indusium breaking irregularly, spotted and streaked inside with brown; paraphyses evident.

Notes

Derivation

ulugurense: this fern was first found in the Uluguru Mts of Tanzania

Habitat

Montaine evergreen rainforest; c.1650m

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. Page 219.
  • Verdcourt, B. (2003) Woodsiaceae. Flora of Tropical East Africa, Pages 21 - 22.
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