64 85. CYPERACE^. 



1180. Rhynchospora alba, Vahl. 



Ai*ea general ? 



South limit in Cornwall, Isle of Wight, Sussex. 



North limit in Shetland, Hebrides, Sutherland. 



Estimate of provinces 18. Estimate of counties 60. 



Latitude 50 — 61. British type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 52 — 45. 



Native. Uliginal. The provincial generality for this 

 species is rather imcertain ; and it may really occur only 

 in 17 or 16 provinces. The two possible exceptions are 

 those of the Trent and East Lowlands. I am not aware 

 of any precise station for R. alba in the latter province ; 

 but it is marked as a plant found beyond 16, within 30, 

 miles of Edinbm-gh, in the Catalogue published by the 

 Botanical Societj'^ of that town. Its occurrence in the 

 Trent province is probable enough, but appears to rest 

 only on the unconfirmed and unverified authority of Pul- 

 teney, according to our latest information (Flora of Lei- 

 cestershii'e, p. 158, 1850). I do not find any note of a 

 Kentish locality among my compilations. 



1181. Rhynchospora fusca, Sm. 



Area 12** [5] 6*** [10]. 



South limit in Cornwall, Dorset, Hants. 



North limit in Glamorgan, Somerset. 



Estimate of provinces 8. Estimate of counties 5. 



