60 84. JUNCACE^. — 85. CYPERACE.E. 



1175. Narthecium ossifragum, Huds. 



Ai'ea general. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Hebrides. 



Estimate of provinces 18. Estimate of counties 80. 



Latitude 50 — 61. British type of distribution. 



A. A. regions. Inferagrarian — Superarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 1050 or 1100 yards, in East Highlands. 



Eange of mean amiual temperatm-e 52 — 36. 



Native. Uliginal. This is quite a common British 

 plant, and yet is often reported ' inter rariores ' by Eng- 

 lish botanists ; the comparative paucity of bogs reaUy 

 rendering it a scarce or local plant in some of the 

 southern counties of England. On the northern moors 

 and mountains it forms a conspicuous portion of the ve- 

 getation, ascendmg slightly above the CaUuna, and thus 

 into the superarctic zone. 



1176. Cyperus longus, Linn. 



Ai-ea 1 3 3 [4 5] 6. 



South limit in Cornwall, Dorset, Isle of Wight, Kent. 



North limit in Pembroke, Somerset, Wilts. 



Estimate of pro-sdnces 4. Estimate of counties 7. 



Latitude 50—52. Atlantic (?) iyyye of distribution. 



Agrarian region. Inferagrarian zone. 



Descends to the coast level, in Channel. 



Ascends to 50 yards, less or more. 



Eange of mean annual temperature 52 — 50. 



