80 85. CYPERACE.B. 



firms it to Scotland, where its existence rested upon old 

 and not the best authorities. Enumerated among the 

 plants of Forfarsliire, by George Don ; but not included 

 in the Flora of that county, by Mr. Gardiner. In the 

 manuscript Flora of Orkney, Dr. Gillies only cites the 

 list in Barry's History, without confirming the habitat by 

 his own or any other additional authority. Not yet as- 

 certained in 50 counties ; but doubtless often overlooked. 



1198. SciEPua FLUiTANS, Linu. 



Area 1 2 3 4 5 * 7 8 9 10 11 * 13 14 15 16 17 18. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Orkney, Hebrides, Sutherland. 



Estimate of provinces 17. Estimate of counties 50. 



Latitude 50 — 60. 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 temperatui'e 52 — 46. 



Native. Lacustral, Paludal. Less common than most 

 other plants with an equally wide area. Ascertained m 

 10 provinces, and fuUy 40 counties. The two provinces, 

 for which I find no record of this species, cannot be con- 

 sidered unlikely habitats; and one of them is accorduigly 

 reckoned in the provincial estimate. But as the species 

 is omitted from various local lists and floras, the comital 

 estimate is taken proportionally lower. 



