b 



85. CYPERACE.E. 135 



/ 



Agrarian region. Inferagrarian zone. 



Descends to ? 



Ascends to ? (100 yards, more or less?) 



Range of mean annual temj)erature, say 49. 



Native. Sylvestral ? Rupestral ? Only of late added 

 to the flora of Britain ; having heen first discovered be- 

 tween Tonbridge Wells and Bridge, in Sussex, by Mr. 

 Mitten; and subsequently found by or near the river 

 Wye, in Monmouth and Hereford shires, by Mr. Purchas. 

 For particulars, reference maybe made to Eng. Bot. Supp. 

 2924; Phytologist, ii. 910, and iv. 341 ; Bot. Gaz. i. 327. 



1252. Caeex pilulifeba, Linn. 



Area general. 



South limit in Cornwall, Isle of Wight, Kent. 

 yK^»*.5/ North limit in Hebrides, Sutherland. 



Estimate of provinces 18. Estimate of counties 75. 



Latitude 50 — 59. British type of distribution. 



A. A. regions. Inferagrarian — Superarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 1100 yards, in the East Highlands. 



Range of mean annual temperature 52 — 36. 



Native. Ericetal. It is somewhat remarkable that the 

 name of this species should not appear in the lists for 

 Orkney, Shetlandf and Faroe, considering its wide area 

 and high census in Britain, and also the great altitude 

 attamed on the mountains of Scotland. Balfour and 

 Babington indicate only one locality for it in the Hebrides ; 

 but that one suffices to bring the census just within a pro- 

 vincial generality. 



