Lomariopsis - Lomariopsidaceae

Lomariopsis congoensis Holttum






Common name


Rhizomes 0.5–1 cm diameter; rhizome scales linear-lanceolate in outline, 10 mm, dark reddish brown, shiny, with long-ciliate margin. Fronds dimorph, pinnately divided. Sterile fronds 55–68 cm long; stipe 1/5 the frond length, brown, with linear scales, especially near the stipe base; lamina narrowly oblong in outline, 35–45 x 20–36 cm; pinnae oblong in outline, 10–12 pairs, 8–11 x 2.5–5 cm, base rounded, distally abruptly narrowed to subcaudate apex, margin entire or irregularly crenulate; rhachises and costae with sparse reduced scales and kinky hairs, not winged; lamina with scattered long-armed stellate hairs; veins simple or once-forked, prominulous; laminar surface glabrous or with sparse minute hairs. Fertile fronds: 12–16 pairs of pinnae, 7–10 x 0.4–0.6 cm, stalked 2–4 mm.



congoensis: from Congo, the type specimen is from Cabinda Province, formerly called Portuguese Congo, in Angola.


Trunks of trees along streams in wet forest.

Distribution worldwide

See African distribution.

Distribution in Africa

Angola, Central African Republic, Chad, Congo, Gabon, Uganda.

Growth form



  • Mickel, J.T. (2002) Lomariopsidaceae.Flora of Tropical East Africa, Page 28. (Includes a picture).
  • 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 145.