262 ENGLISH BOTANY. 
POPULUS MONILIFERA. Ait. 
Frequently planted. I have had it sent me in mistake for P. 
nigra. This and the two next are natives of North America. 
POPULUS BALSAMIFERA. Li. 
Often planted, and sometimes in stations where it might be supposed 
to be wild. 
POPULUS CANDICANS. 4i. 
This subspecies of P. balsamifera I have had sent from Thirsk, 
Yorkshire, and various other places. 
SALIX PETIOLARIS. Smith. 
Engl. Bot. ed. i. No. 1147. 
Sent by Dickson to Crowe without an exact locality being stated; 
said to have been found at Possil Marsh, near Glasgow, by G. Don. 
It is a native of North America. 
SALIX PONTEDERANA. Willd. 
No. 36 of Leefe’s Sal. Brit., which is from Shrewsbury, collected 
by the Rev. W. A. Leighton, is said by Andersson to have much in 
common with §. Pontederana.—Bot. Gaz. vol. iil. p. 59. The 
specimen in my set is rightly named S. ferruginea. 
SALIX DASYCLADOS. Wimm. 
No. 37 of Leefe’s Sal. Brit., which is from Audley End, Essex, is 
named by Andersson, “ certainly S. dasyclados.”—Bot. Gaz. p. 59. 
The specimen in my set is rightly named S. acuminata, Sm., a plant 
which Dr. Andersson at that time evidently misunderstood. 
SALIX GRANDIFOLIA. Ser. 
A plant gathered near North Queensferry by Mr. H. C. Watson 
was said by Dr. Andersson to have the leaves very similar to those of 
S. grandifolia. 
SALIX HASTATA. Lin. 
S. malifolia, Sm. Engl. Bot. ed. i. No. 1617. 
This was sent by Mr. Crowe, under the belief that he had found 
it somewhere in Norfolk; said to have been found at Barrie, near 
Dundee; and reported from Middlesex, by Mr. Joseph Woods. This 
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