24. R. HYSTRIX. 175 



consisting of lanceolate-attenuate (not oval-cuspidate) and 

 much more prickly sepals. They do not associate well with 

 R. Hystrix, and will j)robably be separated from it. I cannot 

 discover a foreign description which agrees with them. 



The R. carpinifolius of Johnston's Eastern Borders is a 

 form of this species, in which the stems are rounder and less 

 hairy, and the short aciculi and setae are much fewer in 

 number and more deciduous. The stems are "glabrous, but 

 roughish to the touch from obscure points and a few im- 

 perfect seta?." But the points are not quite so obscure as he 

 thought; on the older stems they are far from unfrequent 

 and of i-ather a large size, although but little elevated. The 

 examination of his specimens leaves no doubt upon my mind 

 about the true name of the plant. The misnaming of this 

 plant is one of the results of the unfortunate reference of 

 setose and aciculate plants to R. carpinifolius, and especially 

 of the publication of a form of Koehleri with the name in 

 Leighton's Shropshire Ruhi. 



My R. Lingua from Oakhampton differs very slightly 

 from typical R. Ilystrix. Its terminal leaflet is more abrupt, 

 and the edges of all the leaflets are much more finely dentate 

 with the principal teeth patent, but the others directed very 

 decidedly towards the apex of the leaflet. Its panicle is very 

 loose, consisting almost wholly of long simple peduncles. I 

 have only seen it when the panicles were very young. 



Dr Bell Salter's plant from Parkstone and my var. 

 tomentosus belong to R. Radula. Neither of these plants 

 has any relationship to R. scaber, as seems to have been sup- 

 posed by Dr Bell Salter, and was suspected by myself. 



I place the R. approximatus (Quest.) of Billot's Fl. Gall, 

 et Germ, exsic. No. 2454 under R. Hystrix with scarcely any 

 doubt. Its leaves are broader and rounder than on any 

 British specimen which I have seen. Its panicle also is 

 more open v/ith more ultra-axillary and corymbose branches. 



