272 On a Collection of Willows, by Mr A. Brotherston. 



(14) S. ferruginea, And. Frequent. I suspect that either 

 this or a long leaved form of S. caprea would be the S. acuminata. 

 " Flora Berw." i., p. 217. 



(15) S. rugosa, Leefe. Male and female, both frequent, the 

 latter most plentiful. This appears to be rather tender, as the 

 points of the young shoots are always killed during the winter, 

 owing, I believe, to a habit it has of making a late growth, 

 which does not get ripened. Even when leafless it can easily be 

 distinguished by this from the allied S. ferruginea, and also from 

 S. Smithiana. 



(16) S. acuminata, Sm. Seen only on the roadside at Carham, 

 where it has been planted. 



(17) S. Weigeliana, Sm. Frequent and variable. I have found 

 it in Eoxburgh, Berwick, and Selkirk. 



Of S. nigricans, Fries, we have many forms, none of which fits 

 in every particular with the published descriptions of them, which 

 seem to have been made, for the most part, from single individual 

 plants. Amongst them are forms very near, or intermediate be- 

 tween. 



(18) S. nigricans, Sm. 



(19) S. Forsteriana, Sm. 



(20) S. rupestris, Don. 



S. Andersoniana, Sm. 



(21) S. Damascena, Forbes. 



(22) S. cotinifolia, Sm. 



(23) S. hirta, Sm. 



In the " Flora of Berwick," vol. i., p. 216, S. Andersoniana is 

 described, and recorded— "In a hedge near Mount Pleasant, 

 Durham." In vol. ii., p. 289 of the same "Flora," "the reader 

 is- requested to erase S. Andersoniana, and in its place to insert S. 

 Forsteriana," with a description of the latter. Again in the 

 "Eastern Borders," p. 182, S. Andersoniana is recorded from the 

 same locality, with this remark : — " From a mistake of Mr Winch 

 this was described as S. Forsteriana in Berw. Flora." From the 

 wide difference between the germens of S. Andersoniana and S. 

 Forsteriana, and that Winch, who had paid a good deal of atten- 

 tion to the genus, was not likely to make a mistake between 

 these two, I was very anxious to see specimens. From Dr 

 Maclagan, who knew the station where the specimens were ob- 

 tained, I learned that the plants were destroyed. But on looking 



