274 



The Irish Natiiralist, 



November, 



Potentilla Tormentilla. 

 Galium saxatile, 

 Jasione montana. 

 Erica cinerea. 

 Armeria maritima. 

 Euphrasia Foulaensis ? 



Salix herbacea. 

 Juncus squarrosus. 

 Carex pilulifera. 

 Agrostis vulgaris. 

 Deschampsia flexuosa. 

 Hymeuopliyllum unilaterale. 



The summit of Meenawn (1,530 feet) is the barest and most 

 witid-shorn place on the whole island. A patchy skin of peaty 

 soil alone covers the disintegrated quartzite. The vegetation 

 consists of a close mat of Calluna, with Empetrum nigrum^ 

 Vacci7iium Myrtillus^ Erica ci7ierea, Salix herbacea, and a little 

 Arctostaphylos Q.\\d j2C7iipenis nana. 



The Lakes. 



Lakes and lakelets are numerous on Achill ; some thirty of 

 them are large enough to be marked on the one-inch map, and 

 the largest (Keel Lough) is a mile long and almost equally 

 broad. These pieces of water offer everj^ gradation from 

 tidal lagoons to mountain tarns. Sruhill Lough, in the east, 

 is below spring-tide level, and as the amount of fresh water 

 received is small, the flora is marine, and Zosfe?'a is the only 

 phanerogam. Two of the little Dooniver Loughs are brackish, 

 with abundance o^I^nppia rostellata and Myriophylhwi spicaium, 

 znd aXso Pota7nogeto7i pecii7iatus, Chara f7'agilis, Nitella opaca. 

 Lough Doo and Lough Nambrack, just beyond the influence of 

 the sea, are in possession of Poianiogeto7i pecti7iatus, which grows 

 in them in enormous quantity, with Char-a aspera forming a 

 dense mat underneath. Keel Lough is also just above tide 

 level, and separated from the sea by a flat stretch of sand ; yet 

 its flora has a northern and alpine character. Pota7nogeto7i 

 filifo7'7nis is very abundant, especiall}^ along the shallow sandy 

 southern shore, where Chara asper-a forms a thick under- 

 growth below it. It is accompanied by P. niic7is^ P.perfoliahis^ 

 and P, ptisilhis. Lobelia Dort7na7i7ia 0.116. Isoeles lacnsiris grow, 

 the former in profusion, at the peaty northern end. Sruhill- 

 beg Lough, lying near, presents a similar but reduced flora, 

 and is choked with Sci?p7is lacnstris and Pofa7?iogelo7i 7iata7is. 

 Lough Gall, which drains into and adjoins Lough Nam- 

 brack, is in possession of Lobelia and E7iocaulo7i, and in 



