36 7 he Irish Nahualist. February, 



Carluia vulgayis, Chlora pcyfoliata occur, the first three in 

 beautiful profusion. Amid this rather calcicole assemblage 

 (in which many of the species of the Lough Carra islands are 

 nevertheless missing), it was interesting to find a colonj^ of 

 heaths on the foreshore of Shangorman. These occupied a 

 narrow zone between the bushy beach vegetation and the 

 arboreal zone, where possibly winter storms had b}^ degrees 

 formed a substratum of vegetable debris. Calluna was here, 

 and more sparingl}' Erica ciiierea, E. Tetralix^ and Dabeocia 

 polifolia. Ulcx curopcciis is confined to the same zone. The 

 occurrence of Dabeocia is interesting. Mrs. Persse reported 

 a single plant on Martyn's Island (the same station) in 1891, 

 which on the evidence I was inclined to consider introduced 

 or casual : but it is clear that the record should stand, this 

 being the only instance, so far as 1 am aware, of the plant's 

 occurrence within the limestone area. On the same island 

 good Cnictis pratmsis x palusf7'is was seen, with both parents. 

 On a small islet south-west of Devenish, Ra^iunculus scoticns 

 was in fine condition. On Shangorman, Ca7'ex strigosa was 

 gathered, and also Hieracium iricuni. On the windward shore 

 of some of the islands weeds of cultivation were abundant, 

 their seeds evidently blown or washed across from the slopes 

 on the western side of the lake. 



The mountain shore of the lake is much more regular than 

 the eastern, and runs south-west, with few indentations or 

 islets, from the north end of the lake to the two long arms 

 which have been already mentioned. Trie ground slopes 

 downward from the Silurian uplands to the water, and is 

 mostl}^ cultivated. Where it is rough, the calcifuge Conne- 

 mara flora, including Dabeocia polifolia, descends to the 

 water's edge. The shore is stony and bare, without rocks. 

 In the north delightful sandy bays occur, backed by mounds 

 of sand. Here Filaoo minima and Anthemis nobilis <rrow. 

 The numerous rocky islets which occur at the north end of 

 the lake, formed of Carboniferous sandstone, have a vegetation 

 of stunted native trees and heather. Rhammis catharticus and 

 R. Frangtda are abundant, also Dabeocia polifolia and Solaniim 

 Dulcamara. On a sandy bottom in the shelter of the islets 

 %xo\\ Potomageton filiformis, P. luce?is, Sparganium 7iatans, and 

 commoner plants. At the opposite end of the lake, the 



