Mr. Woops on the British Species of Rosa. 219 
and the latter is in so many instances in other families known to 
be variable, that I am unwilling to depend upon it entirely in 
this. Yet the three Roses are dierent in habit, and I have not 
been able to fix on any more permanent distinction. 
21. Rosa COLLINA. 
R. stylis distinctis, aculeis uncinatis subzqualibus, foliolis sim- 
pliciter serratis subtus tantum hirsutis. 
æ. R. collina. Jacq. Fl. Austr. ii. 58. t. 197. Willd. ii. 1078. 
Lam. et Dec. Fl. Fr. iv. 441. Segre setosis, | 
B. pallescens. - | | 
Frutex 6—8-pedalis. Rimi subdiffusi, olivacei, seul; aculei uncinati: aifid, sæ- 
pius debiles, subæquales, solitario- vel Bitiákó stipitaics; Petioli tomentosi, incani, 
aculeisque faleatis muniti. Stipul@ lineares, apicem versus serrate vel glanduloso- 
serrate, supra glabra, cx floribus propiores majores, et tandem foliis deficientibus 
in bracteas ovato-lanceolatas immutate. ^ Foliola 5 vel 7, par superius et foliolum 
impar ceteris majora, elliptica, enormiter (sed nunquam duplicato) serrata; serra- 
turis apice pallide eartilagineis, subtus hirsuta, supra glabra, glauca, et nitoris ex- 
pertia. Pedunculi 1—5, glabri, bracteis breviores. Receptaculum ellipticum, gla- 
brum, olivaceum. Calycis. foliola ovato-lanceolata, apicem versus pilosa, pinnata; 
pinnis lineari-lanceolatis incisis, plerumque margine integerrimis, Flores planiusculi, 
. pallide rubescentes. Styli inclusi, stigmatibus convexis. Fructus ellipticus : matur 
colorem non observavi. 
Hedges i in the southern counties occasionally. 
y. R. canina y.. Lam. et Dec. Fl. Fr. iv. AAT... ai age À 
FES 
R. dumetorum, Lam. et Dec. Fl. Fr. vi 594. 
Stems stronger but more diffuse , brown; aculei Paen brown- 
ish, and much more hooked than in R. collina B; leaflets 
of a bright. shining. green on the upper surface, generally 
somewhat carinate, while in 8 they are rather slightly cam 
cave; tips of the serratures fusco-cartilagineous. Flo 
stalks one to nine. Receptacle broader than that of B. 
" 2r2 Flowers 
