114 Guide to Belfast. 



Among the rarest Irish plants occurring in or about the 

 Mournes are : 



Meconopsis cambrica. Hieracium crocatum. 



Epilobium angustifoHum. Pyrola minor. 



Hieracium lasiophyllum. Linaria repens. 



H. flocculosum. Cryptogramme crispa. 

 H. auratum. 



The coast-Hne of Down is generally low and rocky, with 

 sandy bays ; in Antrim bolder, often cliff-bound, with stony 

 and sandy reaches. On the shores of both counties grow 



Thalictrum dunense. Atriplex farinosa. 



Vicia lathyroides. Euphorbia portlandica. 



Ligusticum scoticum. Scilla verna. 



Mertensia maritima. Ruppia spiralis. 



Convolvulus Soldanella. Scirpus rufus. 



Atriplex littoralis. 



In Down only we find 



Glaucium flavum. Atriplex portulacoides. 



Artemisia maritima. Zannichellia polycarpa. 



Statice occidentalis, Eleocharis uniglumis. 

 Cynoglossum officinale. 



The first five of these reach here their northern limit in 

 eastern Ireland; the sixth has no other station in the 

 country; while the last appears again further northward in 

 Londonderry. Against these, Antrim has no seaside plants 

 absent from Down. 



As regards lake-plants, Lough Neagh, which lies on the 

 western edge of our district, possesses much interest. Two 

 plants of the lake-shore — Car ex Buxbaumii and Calama- 

 grostis siricta var. Hookeri — are unknown elsewhere in 

 Ireland, being exceedingly rare in the British Isles, and char- 

 acteristic of northern Europe. If the record for Tolypella 

 nidifica be correct, Lough Neagh is the only station in the 

 British Isles for this plant. The North American orchid 

 Spiranthes Romanzoffiana occurs in four places in the 

 Lough Neagh basin, in Antrim, Derry, and Armagh. This 

 is the rarest plant in our flora, its only other European 

 stations being in Co. Cork ; elsewhere it is confined to 



