1 RANUNCULACE^. 77 



Range of mean annual temperature 51 — 47. 



Native. Agi-estal. Though chiefly an agrestal or corn 

 field plant, yet, as occurring also in gravel-pits and other 

 analogous situations, there seems no reason to question its 

 C-<^b^^ing>"a, true native. Frequent in the provinces of the 

 Thames and Ouse ; decreasing westwai'd and northward. 

 Recorded from single localities only in the provinces of the 

 Mersey and Peninsula ; rare or local in that of Tyne ; stUl 

 um'ecorded from Wales or Scotland, as also fi'om the Lake 

 Province. As it is a little plant, likely to be overlooked, I 

 have ventm*ed to add one more to the nine provinces ascer- 

 tained for it in England, and so make the estimate into ten. 

 South Wales seems the blank most likely to be hereafter 

 filled up by the discoveiy of the Myosmais there. Ascer- 

 tained in 28 tcounties. 



11. Ranunculus aquatilis, Linn. 



Area, general. 



South limit in ComwaU, Isle of Wight, Kent. 



North limit in Orkney and the Hebrides. 



Estimate of provinces 18. Estimate of counties 81. 



Latitude 50 — 60. British type of distribution. 



Agrarian region. Inferagrarian — Superagi-aiian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 350 yards, in the East Highlands. 



Range of mean annual temperatare 52 — 43. 



Native. Lacustral. Plentiftilly distributed over Britain ; 

 though becoming much less frequent in the Highland pro- 

 vinces ; while in the most northerly of the thi-ee gi'oups of 

 North Isles, it would seem to be quite unknown, being 

 omitted fiom the Flora of Shetland. Probably rare on ele- 

 vated gi-ound, but was observed in small quantity near 



M 



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