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A FUNGUS- GIBELL ULA HA YG ART Ell, SP. N. — ON A 
SPIDER OF THE FAMILY LYCOSIDAE. 
By Paul A. van der Bijl. 
(With four Text-figures.) 
In March 1921 Mr. W. Haygarth sent us from Krantz Kloof, Natal, a 
specimen (fig. 1) of a spider with an interesting fungus growing on it. 
Fig. 1. 
The fungus belongs to the genus Gibellula,* Cavara, and this collection 
is the first record of the genus from South Africa. It is evidently an un- 
described species, and we suggest for it the name Gibellula Haygartkii, sp. n., 
and give the following brief diagnosis : — 
Gibellula Haygartkii, sp. n., P. v. d. Bijl. 
Coremia white, many from back of spider (fig. 1), terete, erect, un- 
branched, 1-3 mm. long x 80-133 jit, diam., base bulbous, 266-500 fx, apex 
more or less sterile for 133-173 fx; fertile hyphae unbranched, covering 
sides of the coremia (fig. 2), entire height 35-266 /z, of two distinct segments, 
* In the genus Gibellula the mycelium and conidia are colourless, and the conidia 
are aggregated together at the apex of conidiophores borne laterally on the coremia. 
These characters distinguish the genus from related genera. 
