Botany. 



117 



Verbena ; and in addition, Poteriuin Sangtiisorba and 

 Galium boreale are found. A number of other Antrim 

 plants absent from Down are usually — at least in Ireland — 

 found in limestone districts : 



Cerastium arvense. Parnassia palustris. 



Arenaria verna. Myriophyllum verticillatum. 



Hypericum hirsutum. Carex. muricata. 



Vicia Orobus. Lastrea Thelypteris. 



R. Udch. Photo. 



A TYPICAL ANTRIM GLEN, SHOWING BASALTIC CLII-FS AND STEEP SLOPES. 



We now proceed to list the rare plants of the district in 

 the Natural Order, with brief indications of their range and 

 frequency. In the selection of the plants, regard has been 

 paid to the frequency of their occurrence both in Ireland 

 and in Great Britain. 



Rare Plants of Down and Antrim. 



Thalictrum dunense Dum. — D., Dundrum and 

 Benderg Bays ; A., Ballycastle, Portrush. 



Ranunculus circinatus Sibth. — D., Canal at Lough 

 Neagh ; northern limit in Ireland; a Central Plain plant. 



