65 
SOME CURIOUS MOULDS. 
By GREENWOOD Pim, M.A. 
While working at Fungi some curious species belonging to the 
Hyphomycetes and allied groups have come under my notice, to one 
or two of which I would like to direct the attention of the British 
Mycological Society. 
1, Botrytis dichotona Ca. This remarkable form does not appear 
in Cooke’s Handbook, nor can I trace it in Massee; the dichotomous 
branching of the hyphae, with the spores dotted all over like pins in 
a pincushion, seems to agree exactly with the figure in Corda’s 
Icones. It occurred in my garden at Easton Lodge, Monkstown, 
County Dublin, on a dead tulip stem. 
2.  Stysanus stemonitis Ca., var ramosa Pim. The interest in this con- 
sists in the fact that according to both Cooke and Massee the stem js 
always simple, while in the specimen in question it is repeatedly 
branched, each branchlet ending in the usual head of spores. 
* 
3. Pimina parasitica Grove. 
Some years ago when examining a specimen of Polyactis 
growing on decayed leaves of Passiflora princeps, I noticed a 
curious black mould parasitic on the Polyactis. Being unable 
to determine it, I sent specimens to Mr. W. B, Grove, who 
considered it a new genus and species, for which he suggested 
the name of Pimina parasitica. ‘Till quite recently I believed it 
was undescribed, but I have discovered that he described it under 
that name in the “Journal of Botany” (Vol. XXVI.) for July, 
1888, p. 206, as follows :— 7 
“Pimina. — Sterile hyphz_ creeping, hyaline, or somewhat 
“coloured; fertile erect, dark, crowned above with basidia ; 
“conidia simple, hyaline, acrogenous. A genus closely allied to 
“ Stachylidium of Fuckel, but distinct in habit, 
