176 7. VIOLACE.E. 



Forth. Classing it with the "denizens," I have taken both 

 native and naturahzed area and ranges together. It seems 

 to myself that all degrees may be traced from V. odorata 

 into V. imberbis ; the latter being rather a variation than a 

 variety. 



134. Viola hirta, Linn. c4^ K/.///. /, J^^. 



Area 1 2 3 4 5 6 7 8 * 10 11 ''^ 13 14 15. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Forfarshire and Dimafiiesshire. 



Estimate of provinces 14. Estimate of counties 50. 



Latitude 50 — 57, English type of distribution. 



Agrarian region. Inferagi-arian — Midagi-arian zones. 



Descends nearly to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 51 — 47. 

 "Native. Sylvestral, &c. Chiefly on chalk and lime- 

 stone, and the vaiious rocks which are cun-ently designated 

 " trap " or " basaltic ;" and hence, though its area extends 

 over two-thu'ds of Britain, it is still somewhat of a scarce 

 plant on accoimt of the wide spaces which inten^ene be- 

 tween its localities. The type of distribution is uncertain, 

 though nearest the Enghsh. Did we look chiefly to the 

 north of England and Scotland, its type would appear 

 eastern or ' Germanic ;' but its westerly extension into 

 Cornwall, and into South and North Wales, throws it into 

 the ' English ' gi-oup. As far as my collection of localities 

 can show, I find no authority for the Viola liirta in any 

 western county, northward of Wales, except that of Ches- 

 ter, for which a single locahty is on record, and that of 

 Dumfiies, in which Lightfoot records it to be fi-equent. 



