296 Transactions British Mycological Society. 



His descriptions of Urophiala are as follows: 

 Urophiala Vuill. nov. gen. 



Mycelium creeping, subhyaline; fertile hyphae erect, dark- 

 coloured septate, simple, always of three parts: (i) a continuous 

 or uni-septate stalk; (2) the head (or prophialide) brown, in- 

 curved bearing three, rarely two, spore bearing phialides; 

 (3) apical filaments faintly coloured. Phialides \'entricose, the 

 apex curved, beaked, soft, soon evanescent, rarely rigid. Conidia 

 solitary, acrogenous, hyaline, round or oblong, smooth. 



Urophiala mycophila nov. spec. 



Mycelium effuse, creeping, ca. i/x thick; fertile hyphae 

 fuliginous, 20-34/Lt high; stalk 4-17 x 2-5-4/i.; prophialide 

 9-iiju, high, 4|u, thick, to 7-7*5/x wide, with apical filament 

 6-8 y. 1-75-2/i.; phialide subhyaline, ascending, 4 x 3-3-5/^; 

 conidia ovoid, 5-7 x 4-5^1. 



On cork among Mucedineae. Culti\ated in a test-tube on carrot. 

 Beyond stating that the fungus grows in association with 

 moulds, Vuillemin does not say that it is parasitic, and there 

 is also no clear evidence that our British species is parasitic on 

 the Botrytis. The microscopic preparation is somewhat im- 

 perfect, but the prophialides correspond exactly in form with 

 the French specimens. Piniina is closely associated with 

 Botrytis conidiophores and may be parasitic but it also grows 

 outside the " host " filament. Vuillemin to whom the matter has 

 been submitted recognises the generic resemblance of the 

 plants but considers them specifically distinct as Grove's plant 

 is on the whole larger. It seems impossible to be absolutely sure 

 until fresh specimens are found. Vuillemin is of opinion that 

 Grove's genus should rank as a nomen nudum on account of 

 the very imperfect description which applies more nearly to 

 Urobasidium. 



If Vuillemin's contention be accepted, the British species 

 would become Urophiala parasitica, but if as unfortunately 

 seems probable Pimina should be held to have true priority 

 then the French species would become P. mycophila. 



