508 ■ ADDITIONAL NOTES, ETC. 



England, which I have referred to P. alba, on account of its 

 four (purplish ?) stigmas, has ordinarily the more rounded 

 and less hoary leaves of P. canescens ; although its leaves 

 produ.ced on the suckers and vigorous sap-shoots, are an- 

 gularly lobed and very white underneath. It is called the 

 ' Abele ' by fai'mers and other country people in Surrey. 

 I should recommend botanical statists, who may find oc- 

 casion to estimate the area and census of these trees from 

 existing data, to take them in combination as one aggre- 

 gate species. 



996. Populus canescens, vol. ii. p. 383. 



Province 6 may be added in the area, on authority of 

 Mr. Babington, who marks this tree as seen in Pembroke- 

 shire. The Isle of Wight may be indicated in the south 

 limit, on authority of Dr. Bromfield, in the Phytologist, 

 as above referred to. 



999. Sallx pentandra, vol. ii. p. 387. 



Mr. Pascoe marks this as seen by himself within five 

 miles of Trewhiddle in Cornwall. 



1000. Salix cuspidata, vol. ii. p. 388. 



This has not been found in Westmoreland, according 

 to a note from Mr. Borrer. Male specimens of S. pentan- 

 dra were mistaken for it in that county. Dr. Andersson 

 intimates that it is not the S. cuspidata of the German 

 botanists, but that it corresponds with Lapland forms of 

 S. pentandra and tetrandra. 



1001*. Salix Russelliana, dr., vol. ii. p. 388. 



It would appear from the notes by Dr. Andersson, 

 above referred to, that S. Russelliana of English botanists 

 is made up from mixed specimens, partly those of S. fra- 

 gilis, partly those of S. viridis. Perhaps true S. Rus- 

 selliana (Sm.) may be S. viridis (Fries). 



1006. Salix rubra, vol. ii. p. 392. 



Add province 5 in the area, on authority of Mr, Borrer, 



