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SOUTH AFEICAN PERISPORIALES. 
I. Perisporiaceae. 
By Ethel M. Doidge, D.Sc, F.L.S., Mycologist, Union Department of 
Agriculture. 
(With Plates LYII— LXVI.) 
(Eead September 15, 1915.) 
The Perisporiaceae and allied fungi are very plentiful in South Africa, 
especially in forest regions and in warm districts with a fairly plentiful rain- 
fall. The specimens in the Union Mycological Herbarium are mostly from 
the Woodbush forests in the Zoutpansberg, from the Knysna, and from the 
coast regions of Natal ; there is also a fair sprinkling from other parts of 
the coast and from Natal as far inland as Pietermaritzburg. The Middle 
and High Veld of the Transvaal are only represented by a single specimen, 
a species of Dimeriella collected at Bandolier Kop. 
All that is known of the South African Perisporiales up to the present is 
comprised in diagnoses and descriptions of fungi collected by Professor 
MacOwan and Dr. J. Medley Wood, and published for the most part by 
Kalchbrenner and Cooke in Grevillea, 1880-1882, and in a few descriptions 
of fungi more recently collected and published in the Annates Mycologici 
and elsewhere. All the earlier work was done in the G-rahamstown district 
and the coast region of Natal, so that a large part of the Union was left 
totally unexplored so far as this group was concerned. 
In working through the material in the herbarium, a number of new 
species have come to light. It seems advisable, therefore, to publish a list of 
the species at present known without attempting to make the collection more 
complete. 
Through the courtesy of Dr. Schonland and of Dr. Peringuey, of the 
South African Museum, I have been able to examine all of Professor 
MacOwan's fungi which are in their possession. Dr. Medley Wood has 
donated his private collection to Mr. Pole Evans, and it is deposited in the 
Union Mycological Herbarium. He has also kindly loaned me the sheets of 
Perisporiales in the Natal Herbarium collection. I have thus had access to 
nearly all the type specimens of the fungi described by Kalchbrenner and 
Cooke. 
