64 ANNALS OF SCOTTISH NATURAL HISTORY 



is a resident on the islands, and I hope will do good work in 

 the future. 



Thalietrum alpinum, Z. — In S. Harris to within six or seven feet 

 of high-water mark. 



Corylus Avellana, Z. — Mr. Watson remarks on this " In the 

 Hebrides the hazel has perhaps been introduced, after having 

 become extinct there." Mr. Somerville considers it certainly 

 wild and native in S. Uist ; and Mr. Duncan in Harris. 



Populus tremula, Z. — With its stems twisted, out of rocks in Barra 

 and S. Uist, Somerville. 



Ajuga pyramidalis, Z. — S. Harris, etc., not unfrequent in the O. 

 Hebrides, W. S. Duncan. 



Until more searching has been done it is not advisable 

 to make any comparisons with adjacent counties, etc. 



NOTES ON SCOTTISH WILLOWS. 

 By F. Buchanan White, M.D., F.L.S., F.E.S. 



I. 



AMONGST several collections of willows, which have recently 

 been sent to me for examination, is a very interesting one 

 made in Dumfriesshire by Mr. James Fingland, of Thornhill. 

 In this collection, in addition to several noteworthy forms, 

 about which I may have something to say on another occasion, 

 there are some specimens of a willow which I have been 

 hoping would sooner or later be found, namely a hybrid 

 between Salix purpurea and 5. phylicifolia. 



In discussing — in the " Revision of British Willows " — 

 the nature and characteristics of Smith's Salix Croweana, 

 I pointed out that it was probable that under that name two 

 plants had been confounded, one an abnormal condition of 

 >S. phylicifolia, the other a hybrid of 5. phylicifolia and 5. 

 purpurea. As, however, I had seen but two specimens, both 

 imperfect and not of certain British origin, of this supposed 

 hybrid, I could not well say much about it at that time. 

 It was therefore with much pleasure that I found in Mr. 

 Fingland's collection the plants in question. 



