Cochlidium - Polypodiaceae

Cochlidium serrulatum (Sw.) L.E. Bishop

Photo: P. Ballings

Photo: P. Ballings






Grammitis serrulata (Sw.) Sw.
Xiphopteris serrulata (Sw.) Kaulf.
Acrostichum serrulatum Sw.
Polypodium duale Maxon
Polypodium serrulatum (Sw.) Mett.

Common name


Rhizome erect, up to 1 mm thick; rhizome scales brown, lanceolate in outline, up to 1 mm long. Fronds tufted, erect, firmly membranous, subsessile, fertile fronds longer than sterile fronds. Stipe very short, brown, glabrous. Lamina up to 35 × 2 mm, glabrous, linear to very narrow oblanceolate in outline, base long tapering, apex broadly acute to rounded, deeply pinnatifid about halfway to the midrib into acute triangular or oblong obtuse lobes each with a single conspicuous vein, midrib immersed. Sori 6-8 per frond, borne on the veins in the widened upper third part of the frond, fusing to form a soral mass at maturity.


Can be distinguished from other species by its simple toothed fronds.


serrulata: finely toothed, referring to the margins of this species.


Quartzite boulders in low-altitude evergreen forest.

Distribution worldwide

Africa, Madagascar.

Distribution in Africa

Cameroon, Equatorial Guinea (incl. Bioko), Gabon, Guinea, Ivory Coast, Liberia, Sierra Leone, Zimbabwe.

Growth form

Epiphytic, lithophytic.


  • Burrows, J.E. (1990) Southern African Ferns and Fern Allies. Frandsen, Sandton. Page 187. As Grammitis serrulata (Includes a picture).
  • Jacobsen, W.B.G. (1983) The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Page 299. As Xiphopteris serrulata (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 152.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta.Southern African Botanical Diversity Network Report, 13 Pages 108 - 109.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta.Flora Zambesiaca, 0 Page 144. As Xiphopteris serrulata
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3.Flore du Cameroun, Page 325. (Includes a picture).
  • Thardieu-Blot, M.L. (1964) Ptéridophytes vol.8.Flore du Gabon, Page 192. (Includes a picture).