120 14. R. LEUCOSTACHYS. 



species. An examination of the specimens and comparison 

 of tliem with the plates in Ruhi Germanici convinces me 

 that they are nearly related to R. vestitus. The R. macro- 

 acanthus of the German authors may perhaps be a form of 

 R. thyrsoideus but does not much resemble either of the 

 plants which have been called R. macroacantlius in Britain. 

 R. villicauUs and R. sylvaticus are noticed elsewhere. 



Mr Sender remarks that my R. villicauUs is veiy closely 

 allied to R. vestitus, and certainly many of the plants to 

 which I used to apply that name are really R. vestitus. 

 They have usually thicker leaflets than the plant first so 

 called in England, and therefore more approach the typical 

 R. leucostachys. One of them, gathered at Llanberis in 

 Caenarvonshire, has an enormous compound panicle all the 

 lower branches of which form secondary panicles similar in 

 form and size to the primary panicle, or even larger and 

 more compound than that part usually is. 



Dr D. Moore has allowed me to examine a specimen, 

 gathered by the side of the river Foyle near Londonderry, 

 which agrees very well with the description and figure of 

 R. 2^ubescens to be found in the Rubi Germanici. The 

 youDg part of its stem is exceedingly hairy, but the older 

 portion is nearly naked. The prickles are large, strong, 

 more or less defiexed, red with yellow tips, from a long com- 

 pressed base. The terminal leaflet is obovate-lanceolate 

 acuminate, not in the least degree cordate and much more 

 narrowed below than is represented on the plate; it is 

 acutely and doubly serrate. The panicle is very like that 

 figured by the German authors but even more leafy. Its 

 lower part may be wanting in this specimen, but it has 

 seven very short axillary branches, of which the lower are 

 racemose and rather distant and the upper corymbose. 



The ultra-axillary part of its panicle is very short, as 

 are also its corymbose branches. But the most conspicuous 



