85. CYPERACE^. 141 



Descends to the coast level, in the Peninsula. 



Ascends to 800 yards, in the East Highlands. 



Range of mean annual tenij)erature 52 — 39. 



Native. Paludal, Uliginal. Though I have not ven- 

 tiu'ed to assume quite the highest comital estimate for this 

 species, it would be difficult to name two counties in 

 which the presimiption against the finding of C. ami^ul- 

 lacea is stronger than that in favor of its occuiTence. 

 There are, however, still upwards of a score of counties, 

 for which it remains imrecorded. See a remark on its 

 former supposed rarity, under the j)recediiig species. 

 Seldom seen clearly within the arctic region. 



1259. Caeex vesicabia, Linn. 



Area 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16. 



South limit in Cornwall, Devon, Dorset, Sussex. 



North limit in Moray, Aberdeen, Argyle. 



Estimate of provinces 16. Estimate of counties 60. 



Latitude 50 — 58. British ij^e of distribution. 



Agrarian region. Inferagrarian — Superagi'arian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 51 — 46. 



Native. Paludal. Less -wide in its area, and less fre- 

 quently repeated within the area inhabited, than is the 

 case with its near ally the C. ampullacea. It is said to 

 grow in Badenoch, Moray (Collectanea), and may there- 

 fore rise to 200 yards m that more northern county, which 

 would imply a range of temperature descending one or 

 two degi'ees lower than is indicated above. 



