1909. Praeger. — Botanical Notes from Lough Mask, etc. 37 



Lusteen islands were explored. They are exactly like the 

 islets of the Connemara lakes, glaciated rocks — in this case 

 altered Silurian — rising out of deep water, and capped with 

 peat and heath. Here again the old 15-foot beach is finely 

 developed, even to the extent of rock platforms. Pijuis 

 sylvestris has been planted. The two Buckthorns are common 

 on the rock}' beach, with Galiu7n boreale, Hie^'achun umbellatimi, 

 Solamim D2ilcainara, and in the water Lobelia Dortvianna. 

 Dabeocia is abundant on the raised central heath area. Listera 

 cordafa occurs (elevation 70 feet) and Seiitellaria minor. On the 

 northern slopes of Knocknamuck, on the adjoining mainland, 

 an area of fine natural wood occurs, composed mainly of Oak, 

 Ash, and Birch. The scenery around here is as good as the 

 best chat Connemara can offer. Nearby on the north-v»^est the 

 lake is filled with sand brought down by the Owenbrin River, 

 and at low water great yellow expanses are laid bare, backed 

 by flat sand}^ meadows. Here again Potamogeton fjli/o7mis was 

 gathered. Further north, at Tourmakead}', Ag7-imonia odorata 

 grew in abundance. 



Of the plants mentioned above, Rhamjuis Frangtila and 

 Filago miniina are hitherto unrecorded from Mayo West, and 

 Ranuncnlus scotic7is, Hieracium angliciim, H. iricitm, and Carex 

 strigosa frcm Ma3'o East. Potamogeton filiformis was pre- 

 viousl}' known from West Galway and from Lough Mask 

 onh^ through a fragment floating loose near Clonbur, found 

 by Rev. E- S. Marshall. 



Bai^i^inrobe to Kii^kee 



From Ballinrobe I went to Cong, and had a half-day's 

 exploring to the south-east, along that portion of the Lough 

 Corrib shore where Dr. Moore discovered the second known 

 station for Neothica intacta, and whence Miss Jackson contri- 

 buted some important records to the second edition of " Cybele 

 Hibernica." The boundar}' between the limestone and the 

 metamorphic rocks runs here along the irregular shore of the 

 lake. The outlying points and islets are formed of the older 

 rocks, between which and the limestone, patches of Carboni- 

 ferous sandstone intervene. It was interesting to find that 

 Dabeocia polifolia penetrates to all these last outposts of the 

 calcifuge flora. It was seen half a mile eastward of the 



A 3 



