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



Learmouth bogs. These bogs having been drained since, has 

 had the effect of exterminating 8. tenuifolia and several other 

 rare and interesting plants from the locality. 



In a highly cultivated district like this, there is some difficulty, 

 indeed it is impossible to decide with certainty, which are truly 

 native, and which are introduced species. But there can be no 

 doubt, whatever, about those growing in such places as Primside 

 bog, Lurgie Loch, &c. Most of the larger growing kinds, 

 although apparently planted where they now are, would, I be- 

 lieve, be wild in the district before the land came under cultiva- 

 tion. 



In the parcel are 130* sheets of specimens. Of these 110 — re- 

 presenting nearly 60 species and varieties or forms — have been 

 collected in the district by myself. The others are from the Bev. 

 J. E. Leefe, and a few Alpine sorts from Mr W. B. Boyd. Of 

 local kinds the following are additional to those recorded in the 

 " Eastern Borders" : — 



(1) Salixdecipiens, Hoffm. Frequent in the district. Roxburgh, 

 Berwick, and Selkirk. It is, I believe, the 8. vitellina=amerina 

 of the "East. Bord." p. 180. Many of the trees are old and in 

 a state of decay. It is easily known from 8. fragilis, of which it 

 is considered a variety by some botanists, by its habit of growth. 

 It is not so tall, and is of upright growth, all the foliage in old 

 trees being near the top, whilst 8. fragilis from its spreading 

 habit appears to be leafy to the ground. It is the Cane-Willow 

 of the basket-maker. 



Possibly this is the same as the male 8. Russelliana referred to 

 in the Flora of Berwick, as there is a tree near the mouth of the 

 Whiteadder, growing along with female 8. Russelliana. 



(2) 8. alba var. ccerulea, Sm. Not uncommon on Tweedside. 

 Best known from type by the leaves getting smooth beneath at 

 an early period of their growth. Grows to a large tree. 



(3) 8. vitellina, Sm. I have seen only recently-planted trees 

 of this. Not native, I think. 



(4) 8. undulata, ~Ehrh.=lanceolata, Sm. Peatrig bog, sides of 

 Bowmont water, mouth of Whiteadder, &c. 



(5) S. triandra, L. Tweedside, near Fish wick, and banks of 

 the TiU, near Twizell. 



* I expected to have added some others hut owing to the wet and other 

 causes I could not get specimens, hut I trust to he ahle to add them at some 

 future time. 



