994 BETULA NANA. 



373 



994 Betula nana. 



68 Cheviotland. 



77 Lanark ? 



78 Peebles. 

 81 Berwick ? 



88 Perth mid. 



89 east. (F. B. White). 



90 Forfar ! 



92 Aber. south ! 



94 Banff. Gordon ms. 



95 Elgin ? Sir W. Hooker sp. 



96 Easterness. Eutherford sp. 



97 Westerness ! 



05 Boss west. 



06 east. Gordon sp. 

 08 Suth. west. Oliver sp. 



995 Populus alba. 



N.B. My notes show habitats 

 for this Poplar in upwards 

 of sixty counties, from Corn- 

 wall to Cantire and Elgin. 

 For the majority of those 

 counties it is marked as a 

 tree likely or certainly intro- 

 duced. It is given as an 

 unquestioned native in the 

 Floras of Surrey, Essex, 

 Herts, Suffolk, Norfolk, 

 Cambridge, &c. In the 

 Floras of Tyne and North 

 Yorkshire it is reduced to 

 the grade of " denizen." 

 And if I rightly know the 

 distinction between alba and 

 canescens, I should now deem 

 the latter native, and the 

 former planted, as seen in 

 Surrey and elsewhere. 



996 Populus canescens. 



1 or 2 Cornwall. 

 3 Devon south. 



6 Som. north. Thwaites cat. 

 9 Dorset. 



10 Wight. More cat.f 



11 Hants south. Towns, cat. 



12 north. 



14 Sussex east. Boper. 



16 Kent west ! 



17 Surrey ! Syme " sp." 



18 Essex south. 



19 north. Varenne cat. 



20 Herts. Coleman cat.* 



21 Middlesex. 



22 Berks. 



25 Suffolk east. 

 27 Norfolk east. 

 29 Cambridge. Babington cat. 



32 Northampton. Druce rec. 



33 Gloster east. Prentice cat. 



34 west. Thwaites cat. 



36 Hereford. 



37 Worcester. 



38 Warwick. 



39 Stafford. Eraser cat. 



40 Salop. 



45 Pembroke. Babington cat. 



50 Denbigh. J. E . Bowman cat. 



51 Flint. Kobinson cat.f 



52 Anglesea. 



55 Leicester. 



56 Notts. 



62 York n. east. Baker cat.f 



66 Durham. " denizen." 



67 Northumberland. " den." 



68 Cheviotland. " den." 



77 Lanark. Kennedy cat.* 



78 Peebles. Brotherston cat. 



80 Boxburgh. Brotherston rec. t 



81 Berwick. " planted." 



997 Populus tremula. 



Counties all, except 5 32 34 

 42 46 47 60 72 73 74 78 

 82 84 102 105 112. Likely 

 enough it occurs in nearly 

 all of these counties. It is 



