112 (jiiide to Belfast. 



Rubus Chamgemorus "\ .• -at 



^ ■ ■ , \ bperrin JVIountains. 



Carex rigida j ^ 



Cochlearia anglica. 



tGalium Mollugo. 



Hieracium prenanthoides. 



Hypocha^ris glabra. 



Calamagrostis Epigejos. 



Lastrea spinulosa. 



Equisetum variegatum. 



Armagh adjoins Down on the westward, and is an area of 

 very similar character, except that a stretch of Carboniferous 

 limestone brings in some calcicole species, and its almost 

 inland situation cuts out the majority of sea-coast plants. 

 The number of Armagh plants not found in Down or Antrim 

 is lo, most of them being species which are of more or less 

 frequent occurrence further south or west : 



*Clematis vitalba. ^Matricaria discoidea. 



Ranunculus Baudotii Arctium majus. 



{var. confusus). Potamogeton filiformis. 



Fumaria densiflora. Bromus commutatus. 



*Diplotaxis muralis. Nitella fiexilis. 



Galium Mollugo. 



The distribution of the flora in Down and Antrim calls 

 for a few remarks. The greater part of Down consists of 

 low (under 500 feet), undulating country, formed of Silurian 

 slates, and the leading feature of its flora is that it is dis- 

 tinctly calcifuge. Of 10 species classed in Cybele Hibemica 

 as '"'' calcicole A" only two — Carlina vulgaris and Orchis 

 t>yra?)iidalis — have been found in the county; chiefly on 

 sea-sands, where lime may be abundant. Of 31 more 

 classed as ^^ calcicole B," 14 occur; namely : 



Aquilegia vulgaris. *Yerbena officinalis. 



Reseda Luteola. lOriganum vulgare. 

 Anthyllis Vulneraria. Juncus glaucus. 



Pimpinella Saxifraga. Carex glauca. 



Tussilago Farfara. Trisetum flavescens. 



Leontodon hirtus. Avena pubescens. 



iVerbascum Thapsus. Ceterach officinarum. 



