Mr. Woods on the British Species of Rosa. 211 



paris superioris semper latius ; nunc ovato-elliptica, nunc rhombeo-elliptica, plana, du- 

 plicato-serrata, serrulaturis glandulosis, paginis ambabus plerumque hirsutis sed sem- 

 per iriferiore. Pedunculi 1 — 16, iiiodo setis debilibus, nuncpilis albis sparsis, et nunc 

 pubcscentia deiisft, instruct!, bracteis breviores. Receplaculum ellipticum, obscure 

 fuscum, glabrum. Calyds fnliola triangulari-elliptica, composita, pinnis confertis, 

 lanceolatis, vel ovato-lanceolatis, incisis, glanduloso-serratis. Flores incarnati vel ru- 

 bescentes, Slyli inclusi ; stigmata pianiuscula. Fruclus ellipticus, rarius subglo- 

 bosus, intense ruber. 



Hedges and thickets, cot uncommon. 



fi. Leaves hoary, with pubescence on both sides. Near Edin- 

 burgh, Mr. Borrer. 



The leaves of this species are generally of a very dark colour, 

 and always remarkably flat; the young leaves are tender at the 

 edge, and frequently tinged with purple. This character it has 

 in common with R. dumetorum and R. surculosa ; but both these 

 plants have simple senatures ; and these marks, as well as the 

 peculiar breadth of the terminal leaflet, may assist the investi- 

 gator, in addition to the specific character and to the particula- 

 rities already pointed out under R. micrantha, in distinguishing 

 it from that species : from which, notwithstanding its affinity, it 

 also strikingly differs in general habit. The irregularity of the 

 serratures in R. collina may sometimes create a difficulty be- 

 tween this and that species. The calyx-leafits, the dark-green 

 flat leaflets, and the broad terminal one, may help to decide 

 in doubtful cases; yet some specimens I have been obliged to 

 join to 21. Borreri merely on account of the double serratures of 

 the leaflets: and in the autumn of 1814 1 observed a plant near 

 Southgate, which, with all the other characters of R. Borreri, had 

 nevertheless simple serratures: in 1813 the same plant had com- 

 pound serratures. I have examined perhaps a hundred plants of 

 this species, and my friends Mr. W. Borrer and Mr. E. Forster 



2 E 2 probably 



