

394 



DR. F. BUCHANAN WHITE 3 



I have little doubt regarding it, yet the specimen is too poor for 

 absolute certainty, and is mentioned merely to call attention to the 

 probable occurrence of the hybrid. 



A leaf-specimen of a willow from Clova ( W. B. Linton) is also 



perhaps an example of this hybrid. 



X Salix Caprea-repens, Lasch. (S. repens x S. Caprea.) 



Very closely related to the last (and with it to 8. ambigua, of 

 which, indeed, Andersson is inclined to think they are both forms) 

 is the hybrid between 8. repens and 8. Caprea. To it I think 

 belong two plants found by the Messrs. Linton on the cliffs at 

 Armadale, Sutherlandshire. Unfortunately there are no flowers 

 on either of the specimens, and till these are seen there must 

 remain a little doubt*. One of these specimens agrees with 

 authentic specimens of S. Caprea-repens from Sweden, and is a 

 fairly intermediate form. The other, whilst evidently belonging 

 to the same hybrid, is, in the greater silkiness of the pubescence, 

 rather nearer repens. "Whilst these are undoubted hybrids of 

 repens, the general facies and veining, pubescence, and colour of 

 the leaves points to Caprea rather than cinerea or aurita being 

 one of the parents, and therefore I give it a place in the list. 







• 



m 



(8 



Wimmer describes this hybrid from specimens sent to him by 

 Heidenreich (who found two tf bushes near Tilsit, in Prussia), and 

 compares it with S. ambigua. From that species it may be dis- 

 tinguished by the dull green of the leaves as contrasted with the 

 grey colour of those of S. ambigua, which are moreover wrinkled. 



Some willows found on the banks of the Tay above Dunkeld 

 by Mr. C. M'Intosh, and on the banks of the Garry, near Blair 

 Athole, by myself, though not very like the only specimen of 

 Heidenreich's which I have seen, evidently belong to a hybrid 

 between S. repens and 8. nigricans. 



The specimens before me include both d and $ , and show 

 much the same characters. In all respects they are intermediate 



* Since this was written I have seen a $ catkin grown by the Eev. W. F« 

 Linton on a cutting of the better- marked of the two plants. This, while it has 

 a considerable proportion of S. repens in it, has also part of its characters from 

 8. Caprea, and tends to confirm the opinion I had already formed. 









*v 



















- 





















. 







i 



* 



" 









- 



■ 



■ 





















