108 THE FLORA OF DERBYSHIRE. 



Var. glabra, Syme. 

 III. Yeldersley, Linton. 



Populus nigra, L. (Black Poplar). Alien. 

 I. Wye Valley up to Asliwood Dale, likely planted, 

 Baker, J. B.\ planted woods, Matlock, B. and N., J. B. 

 III. Planted about Calke, Purchas, J. B. 



999. Salix pentandra, L. (Bay Willow). Native. Scottish 

 type. Eange 1-2. 

 I. Ash wood Dale ! 

 III. Hognaston, Smith', Eggington, Harris. 



1001. Salix fragilis, L. (Crack Willow). Native. British 

 type. Kange 1-2. 



I. Mellor, Hannan ; Ohatsworth, Scrimshaw ; Wye Valley, 

 up to 300 yards ; Buxton, Baker, J. B. ; about Matlock. 

 B. and N., J. B. 



III. Eggington, Harris ; Shirley, Linton. 



Var. britannica. 

 I. Mellor, Hannan. 



1002. Salix alba, L. (White Willow). Denizen. British 

 type. Kange 1-2. 



I. Dove Dale, Purchas, J. B. 



III. Eggington, Harris ; Ockbrook, Smith MSS. ; Calke, 

 but perhaps planted, Purchas, J. B.; Shirley, Linton. 



Var. vitellina, L. 



I. R. Wye in Monsal Dale, 250 yards, Baker, J. B. ; 

 Cromford, Sunderland and Hannan. 

 III. Near Burton-on-Trent, Harris. 



1004. + Salix undulata, Elirh. Native. English type. 

 Eange 2. 



I. Miller's Dale ; one old tree and several younger ! 

 This willow has been named 5. triandra, L. by Mr. Baker, 

 but Dr. J. Buchanan White, to whom I have submitted 

 normal catkins gathered in June last, and abnormal ones 

 gathered in August, 1883, when I visited Miller's Dale in 

 company with the Rev. W. H. Purchas and Mr. C. Bailey, 

 F.L.S., says it is 5. undulata. Dr. White's notes upon this 

 Willow are as follows: "The interesting feature of the 

 late summer catkins is that the capsules are more or less 

 pubescent. The spring ones seem to be quite glabrous. 

 Now Smith's lanceolata differs from Ehrhardt's undulata in 

 having glabrous and not pubescent capsules. Undulata is 

 also said to be very rare, and indeed is considered by some 

 salicologists to be a mixture (i.e. Ehrhardt mixes up several 

 forms). Audersson and many others consider lanceolata and 



