CHARA DELICATULA. 69 



A small plant forming small bushy detached tufts, growing 

 on the clay or stony margins of lakes. 



Specimens liave been collected from Sutherland, W. 

 (L. Maol-a-Choire and Lochan Hacoin, Tongue) ; Orkney 

 (L. of Ilarray) ; Shetland (Tingwall L.) ; Meath (Old- 

 castle) ; Roscommon (L. Ree) ; Mayo, W. (Clare I.) ; 

 Leitrim(GrlenadeL.); Donegal (TuUyconnelL., Kindrum 

 L.); Antrim and Down (L. Neagh). 



[C. tenuispina Braun, a rather small monoecious 

 triplostichous species with strongly developed stipulodes, 

 spine-cells and bract-cells, has been found in Schleswig- 

 Holstein, several parts of Germany and in Switzerland.] 



