478 80. ALISMACE.E. 



1113. Sagittaeia sagittifolia, LhiH. 



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



South limit in Devon, Hants, Sussex, Kent. 



North limit in Renfrew, Westmoreland, Durham. 



Estimate of provinces 13. Estimate of counties 40. 



Latitude 50 — 56. English type of distribution. 



Agrarian region. Inferagrariau — Midagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 yards, more or less, in England. 



Range of mean annual temperature 51 — 47. Peculiar 

 to England, with the exception of the one Scottish habi- 

 tat, near Paisley, in Renfrewshire, whence a specimen has 

 been sent to me by Dr. J. D. Hooker. Probably more 

 rare in the western provinces of England than in the eastern. 



1114. BCTOMUS UMBELLATDS, ZzW«. '^ ^^ '^^ 



Area 1 2 3 4 5 6 7 8 9 10 11 * * (14 15). 



South limit in Devon, Isle of Wight, Kent. 



North limit in Durham, Lancaster, Anglesea. 



Estimate of provinces 11. Estimate of counties 40. 



Latitude 50 — 55. English type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 yards, more or less, in England. 



Range of mean annual temperature 51 — 47. 



Native. Paludal. Beyond the northern limit above in- 

 dicated for this plant, it is said to occur at Howick, in 

 Northumberland, in Duddingston Lock, by Edinburgh, 

 and in Clunie Loch, which I suppose to be the one so 

 named in Perthshire ; but into these three counties the 



