IBELAND. 103 



A Contribution to the FreshwaJ*fr Algae of "West Ireland 



By ¥m. ¥fc, F.L.S. 



[Read 5th December, 1891.] 



(Plates XVIII.-XXIV.) 



West 



made some hundreds of gatherings of Algae from this most pro- 

 lific district. The localities were varied as much as possible 

 considering the limited time that I had, yet there was a lack of 

 material from the more elevated parts of the district, on account 

 of the unfavourable weather which prevailed preventing any 

 ascent of the higher mountains. Notwithstanding this slight 

 drawback, the collections have proved to be extremely rich in 

 species, some of those which are usually considered rare proving 

 to be locally common, while a number of species and varieties are 

 entirely new. 



A few good gatherings were made in and near lakes both north 

 and south of Westport. The small lakes and moor-pools of 

 South-west Mayo towards Leenane, as well as those of Galway 

 towards Glifden, were also found to be rich localities; but the 

 best-yielding district was undoubtedly that traversed between 

 Clifden and Eoundstone, and thence through Connemara by 

 way of Ballynahinch and Glendalough to Oughterard, the land 

 here being studded with innumerable small lakes. A walk from 

 Ballyvaughan over the terraced limestone hills of Burren in 

 N. Clare to Gort yielded hardly any Algae. A few days spent in 

 the neighbourhood of Muckross proved that district to be well 

 worth investigating. These were the only places in which I col- 

 lected, except that one small bottle was filled from the river at 



Mallow 





w 







although the weather was most unfavourable, the rain seldom 

 ceasing, still a very large number of gatherings were made. Many 

 species were obtained from pools and other places near the Lower 

 Lake of Killarney and O'Sullivan's Cascade. Some excellent 

 gatherings were made on Carrantuohill, especially to the S.E. and 



W 



Between 



Glen Caragh and Glengarriff, going past Lough Brin and through 



LINN. JOUBN. — BOTANY 



K 











