Clare Island Survey — Fungi. IS 3 



from our mainland list : Hydnum eight against one, Poria seven against two, 

 Polyporus eight against one, Boletus fourteen against two, Lepiota six against 

 two, Tricholoma fifteen against one, Mycena thirty-eight against twelve, 

 Omphalia eight against five, Entoloma eleven against five, Leptonia five against 

 two, Nolanea four against one, Pholiota six against one, Inocybe ten against 

 two, Naucoria eight against four, Galera five against three, Tubaria four against 

 one, Hypholoma nine against one, Psathyra eight against two, Coprinus eleven 

 against seven, Cortinarius forty-eight against eight, Hygrophorus twenty-three 

 against fifteen, Laetarius twenty-seven against one, Russula thirty-two against 

 two, and Lycoperdon six against one. The following important genera are 

 absent from the Clare Island list : Pomes, Polystictus, Amanita, Amanitopsis, 

 Armillaria, Clitocybe, Collybia, Pleurotus, Volvaria, Pluteus, Clitopilus, 

 Hebeloma, Gomphidius, Cantharellus, and Nyctalis, although members of these 

 genera are recorded in our mainland list. Over ninety species are recorded 

 for Achill Island ; and it is probable that if the fine wood at Glendarary on 

 this island was efficiently worked, a large number of species would be obtained. 

 Our visits have been few and far between, but it is clear that if the fungi of 

 the extreme west of Ireland were diligently worked at many seasons of the 

 year, a large number of additional species would be added to the still some- 

 what small list included in the " Census Catalogue of Irish Fungi." It is a 

 remarkable fact that, although we so constantly worked in woods where 

 Beeches were the dominant trees, we never found any examples of Hypoxylon 

 coccineum (Bull.) Fr. 



CLARE ISLAND. 



2. Introduction. 



The following list makes no pretension to be complete. It is based 

 almost entirely on the results of three short visits paid by the writer. 

 These were made from 20 to 27 August, 1909; for about a week from 

 October 3, 1910 ; and from April 27 to May 4, 1911. Before the survey 

 began its work, the only fungus recorded from the island appears to have 

 been Ustilago longissima, found by Mr. R. LI. Praeger on Glyceria. I have 

 aimed at providing a record of the species prevalent on the island in the 

 years 1909 to 1911. This is not the place to speak of the special difficulties 

 of the recorder of fungi, but it may be safely said that, within certain limits, 

 the mycologic flora of any given determinate area is sure to be a fluctuating 

 one. . The species of fungi have not only very wide areas of distribution, but 

 they have great facilities for extending their areas at short notice ; and there 

 are sure to be some species dying out as they exhaust their special matrix, 



A2 



