﻿218 



become glabrescent, besides being decidedly thinner than in 

 species ; in fact, at the time of writing these remarks, they apprc 

 more closely in appearance to those of herbacea, from which, 

 their rounded form, greener colour, occasionally crenate-den 

 margins, and (as a rule) distinctly cordate base appear to be den 

 The reticulation of the under surface, though upon the whole ne 

 to lanata, bears witness to their double a 

 and leaf-buds also giving strong evidence ( 



For an opportunity of studying fresh catkins I have to thank 

 Mr. Boyd, who most generously forwarded all the available material 

 produced by his bush this season, in capital condition for examining. 

 The characters of these are, I think, pretty much what one would 

 expect to see resulting from the suggested union; the only divergence 

 from the 1874 drawing being in the stigmas, which are somewhat 

 longer than it represents them to be. Both catkins and capsules 

 are only about a third or a fourth of the normal size in Janata the 

 styles being also somewhat shortened, and the scales less densely 

 * .ggy with silki 

 the styles 



book-descriptions might lead one to expect. , , , , 



My consideration of this subject has been much helped I 

 study of other herbacea-hybnis (with Arbu.se id a, aurita, Lappa] 

 Myrsinites, and nigricans), as illustrating the effect produced by that 



When visiting Dr. White's station for his S. Stephania, I believe 

 that I have gathered both forms described by him (I. c. pp. 424-6). 

 They differ very considerably from one another and from my Glen 

 Callater herbacea x lanata, as well as from 8. Sadleri; still, anyone 

 who has seen much of such polymorphic hybrids as aurita x cinerea 

 and aurita x repens will be indisposed to lay great stress upon the 

 amount of divergence. 



It appears more likely, on general grounds, and taking into 

 account the proneness of willows to intermix, that S. Sadleri should 

 be due to such a cross-fertilisation as is here suggested, than that a 

 true species or variety should be represented by only two indi- 

 viduals in a single station. Here, moreover, is an illustration of 

 the inconvenience of deliberately giving quasi-specific names to 

 plants which are considered to be of hybrid extraction; for 8. 8adlm 

 Syme and S. Stephania B. White are clearly not identical, although, 

 as far as I can judge, they have the same parentage. 



A NEW BRITISH RUBUS. 

 By Edward F. Linton, M.A. 

 A bramble of the suberect group, allied to R. plieatiu, < , 

 niUdus, and affinti, but not easily subordinated to any one of i 

 has been gathered in one Irish and four English counties, 

 over it has been referred to R. opacus Focke, and issued as su 



