Notes on the Fungi of the Dublin District. 247 



leaves, parasitic on a larger mould. Mr. Grove considered 

 it a new genus, which he honoured me with calling Pimia. 

 Two remarkable forms occurred a few years ago on Silo grass 

 at the Model Farm, Glasnevin, which are fully described in 

 Mr. W. G. Smith's "Diseases of Field and Garden Crops," 

 under the names of Isaria fiiciformis and Saprolegnia philo- 

 nmkes. The peculiar and beautiful mould, MyxotTichuvi 

 deflexuni, occurred on a whitened wall at Royal College of 

 Surgeons, along with the minute Peziza domestica, while 

 Dr. McWeeney adds no less than six species of Peronospora. 



Turning to the Discomjxetes, some thirty-eight new species 

 are noted, among which are the rare forms, Vibrissea trnnco- 

 rimi, which recurs regularlj^ every spring in the same spot in 

 Powerscourt demesne, and also found by Dr. M'Weeney in 

 the Slade Brook, and V. guer?iisaci at Altadore. Even with 

 these additions our list of Discomycetes is far from large. 

 This seems strange, as though frequently not very prominent, 

 they are not usually so small as to be very readily overlooked, 

 and our climate and conditions seem admirably adapted to 

 their production. 



Of the Pyrenomycetes, the same remarks hold good, except 

 as regards their size, which is generally very minute, which 

 may possibly account for the exceedingly small number re- 

 corded. Amongst the additions is Torrubia militaris, a most 

 remarkable object always found on dead pupae, or caterpillars. 



The large extent to which the following list is indebted to 

 Dr. M'Weeney, the initial letters in brackets (M'W.) will in- 

 dicate, as representing the species found by him, (P.) is 

 similarly appended to those for which I am responsible. There 

 can, I think, be little doubt that careful investigation will be 

 rewarded with many discoveries even in our best- worked 

 localities, while almost the whole of the rest of Ireland is a 

 terra incog7iita as regards Fungi. An exception must, how- 

 be made as regards the north-east, which has been well 

 explored by Rev. H. W. I^ett, while a few species from 

 Killarney and Glengariff may be found in my report in Pro- 

 ceedings Royal Irish Academy (Science) for 1885. 



The following list has for convenience been arranged 

 generally on the lines of that in Cooke's "Handbook," as 

 being the book in most general use, although not quite up 

 to modern ideas : — 



