84. JUNCACE.E. 57 



Estimate of provinces 18. Estimate of counties 83. 



Latitude 50 — 60. British type of distribution. 



A. A. regions. Inferagrarian — Midarctic zones. 



Descends to tlie coast level, in the Peninsula. 



Ascends to 900 yards, in East Highlands. 



Range of mean annual temperature 51 — 37. 



Native. Sylvestral, Ericetal. For reasons mentioned 

 under L. campestris, the distribution of this species is 

 less fully recorded than that of the other, with which it 

 has often been confused or combined. Still, it has been 

 recorded from fifty or sixty counties, and may faii-ly be 

 expected in all the rest, not excepting Cornwall and Shet- 

 land. I have only one note of it, L. multiflora, above 

 650 yards of elevation; but this may perhaps be accoimted 

 for in the remarks made under L. campestris. 



1173. LUZULA AECUATA, Hook. 



Area *j^************15* 17. 



South limit m Aberdeen, Forfar ? 



North limit in Sutherland. 



Estimate of provinces 2. Estimate of counties 3. 



Latitude 56—59. Highland type of distribution. 



Arctic region. Superarctic zone. 



Descends to 1000 yards (?), in the North Highlands. 



Ascends to 1450 yards, in East Highlands. 



Range of mean annual temperature 35 — 32. 



Native. Ericetal or Rupestral. Very local in Britain. 

 Its chief habitat appears to be on Ben-na-muic-dhu and 

 other summits of the Cairngorum group, about the junc- 

 tion of Aberdeen and Moray. It has liltewise been found 

 on Loch-na-gar, Aberdeenshire, by Professor Balfour. 

 By Professor Graham, in his ' Excursion ' of 1833, it was 



VOL. III. I 



