DUBLIN Royal Irish Academy, June 11. A. E. MUSKETT, H. CAIRNS and E. M. CARROTHERS: Further contribu tions to the fungus flora of Ulster. This paper represents a further contribution to the known fungus flora of Ulster, the first contribution being made in I931(Proc.Boy.IrishAcad.,49,Sect.B,No.2; 1931). It adds 284 species and varieties to the previous records, the total number recorded up to the date of writing being 1,199. A large number of these additions were made during the visit of the British Mycological Society in 1931 when forays were made to some of the better known woodlands. 141 of the species and varieties listed are noted as being new Irish records. Two of the species and one variety constitute new British records. These are Hygrophorus agathosmus, Fr. var. aureo-foccosus, Bres., and Tulasnella anceps, Bres. and Syd. Both were recorded during the visit of the Society, the latter being parasitic on Pteris aquilina. The other new British record, Phytophthora Megasperma, Drechsler, was isolated by one of the writers from a potato tuber affected with pink rot.