Natural History of the Island of Rathlin. 71 
* Ceratophyllum demersum, L. Common horn-wort. Large lake (Lough Ru- 
naolin) in southern end of Rathlin. 
Lemna minor, L. Lesser duck-weed. Marshes, common. 
Poa pratensis, L. Smooth-stalked meadow-grass. Frequent. 
Poa maritima, Huds. Creeping sea meadow-grass. Sea shore. 
Poa annua, L. Annual meadow-grass. Road-side. 
Festuca ovina, L. Sheep’s fescue-grass. Abundant. 
Arundo phragmites, L. Common reed. Covering great part of the marsh in the 
southern part of the island. 
* Triticum loliaceum, L. Dwarf sea wheat-grass. On dry ground. 
* Lolium arvense, L. Short-awned annual darnel. In dry places, as on hills 
above Church bay. 
Aspidium jfiliz mas, L. Abundant at the entrance to one of the caves, south of 
Church bay ; growing also on borders of the marshes. 
Chara vulgaris, L. Common chara. Ditches and riyulets. 
