118 14. R. LEUCOSTACHYS. 



Lindley himself: in the other derived from specimens sent 

 by Mr Leighton to the latter botanist and returned with the 

 name of R. diversifolius attached to them by him. The 

 remark in the second edition of Lindley's Synopis. in which 

 he rather strongly expresses his astonishment at MrBorrer's 

 opinion concerning the plant, is quite justified from his 

 point of view, if we bear in mind this singular transfer of 

 the name from one of the ViUicaules to a plant belonging to 

 the Glandulosi; but Mr Borrer's opinion was equally well 

 founded. After the above-mentioned difficulty had been 

 removed I was myself the originator of another : for, having 

 observed an extreme form (as I now consider it) of R. 

 leucostachys ^ vestitus in woods, and being then ignorant of 

 the full effect of shade upon brambles, I thought that it was 

 a distinct species, and called it R. Leightonianus. This 

 mistake was the cause of much correspondence and per- 

 plexity; but ultimately Mr Leighton himself showed that 

 the plant named in his honour is only the wood-form of R. 

 leucostachys. Mr Leighton' s remarks will be found in the 

 Phytologist (iii. 176), and some of my own in the Annals If. 

 E. (Ser. 2. ii. 38). 



But we have not yet done with the difficulties which 

 have arisen from forms of this species. In the Annals N. H. 

 (xvi. 368) Dr Bell Salter notices a supposed variety of R, 

 rudis as the R. Reichenhachii of the Rubi Germanici; in my 

 Sy7io2)sis I adopted his views and followed them also in the 

 second and third editions of my Manual, referring in the 

 latter of those editions a plant found near Bangor, Caernar- 

 vonshire, to that variety of R. rudis. A careful examina- 

 tion of tolerably good, but cultivated, specimens of Dr 

 Salter's plant, for which I am indebted to my lamented 

 friend himself, has now convinced me that it also is a form 

 of R. leucostachys on the barren stem of which a very few 

 aciculi and setae show themselves. It is now well known 



