Terpsichore - Polypodiaceae

Terpsichore kirkii Parris

 

 

 

 

Synonyms

Common name

Description

Rhizome erect; rhizome scales 0.2 - 0.5 x 0.1 - 0.5 mm, ovate to lanceolate in outline, obtuse to acute or apiculate at apex, subcordate at base, pale red-brown, with pale red-brown simple eglandular hairs 0.1 - 0.2 mm on margin and sometimes on abaxial surface, not clathrate, not iridescent. Stipes in whorls, not articulated to rhizome, 3 - 4 x 0.2 - 0.3 mm, with pale yellow-brown to pale red-brown simple eglandular hairs 0.4 - 1.0 mm, sometimes with pale red-brown 1 - 2- forked catenate hairs with medium red-brown cross-walls, simple eglandular branches and glandular apex 0.3 - 0.7 mm. Laminae c. 108 x 9 mm, linear-elliptic in outline, obtuse at apex, narrowly cuneate at base, deeply pinnately divided to wing c. 0.1 mm wide along rachis, pinnae c. 25 pairs, longest pinnae 5 - 7 x 2 - 3 mm, narrowly triangular to narrowly oblong, bluntly acute at apex, sessile to partly free from rachis wing on acroscopic margin, decurrent on basiscopic margin at base, entire or slightly crenulate; with pale yellow-brown to pale red-brown simple eglandular hairs 0.2 - 1.1 mm on abaxial surface of lamina, abaxial surface of rachis, margin (where solitary, not binate or ternate), adaxial surface of lamina and adaxial surface of rachis, sometimes with pale red-brown simple glandular hairs with medium red-brown crosswalls <0.1 mm on abaxial surface of lamina; rachis prominent and darker on both surfaces of lamina; lateral veins pinnately branched, branches simple, each branch ending marked by a hydathode 0.1 - 0.4 x 0.1 - 0.2 mm on adaxial surface of lamina. Sori 0.8 - 1.2 x 0.6 - 0.9 mm, on surface of lamina, discrete when mature, on 10+ pairs of pinnae, in 2 rows per pinna, 1 each side of pinna mid-vein, 3 - 4 in each row on longest pinnae.

Notes

Derivation

Habitat

Distribution worldwide

See African distribution.

Distribution in Africa

Malawi.

Growth form

Epiphytic.

Literature

  • Parris, B.S. (2002) New species and new combinations in African Grammitidaceae (Filicales). Kew Bulletin, 57 Pages 431 - 432. (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 166.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta. Flora Zambesiaca, 0 Page 143. As Xiphopteris cultrata sensu Schelpe
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