Jp. Roux, A NEW SPECIES OF POLYSTICHUM (PTERIDOPHYTA, DRYOPTERIDACEAE) FROM SOUTH-AFRICA, Biological Journal of the Linnean Society, 125(1), 1997, pp. 35-43
A new Polystichum (Pteridophyta: Dryopteridaceae) species, P. incongru
um J. P. Roux sp. nov. from the Western and Eastern Cape Provinces fro
m South Africa is described. This variable species is related to P. pu
ngens (Kaulf.) C. Presl hut differs from it in pinnule morphology, the
frequent occurrence of glandular cells along the sporangium stalk, th
e (more rare) occurrence of clavate unicellular glands along the indus
ium margin and a chromosome number of 2n = 164. (C) 1997 The Linnean S
ociety of London.