ICOSANDRIA— POLYGYNIA. Rosa. S71 



deep, ovate-lanceolate, pointed, concave, imbricated, per- 

 manent or deciduous segments ; either all simple ; or 2 

 of them pinnate with leafy appendages on both sides ; 1 

 on one side only ; the odier 2 naked on bodi sides. Pet. 

 5, inversely heart-shaped, about as long as the segments 

 of the calyx, and attached by broad claws to the rim of 

 its tube, deciduous. Filam. numerous, capillar}', much 

 shorter than the petals, from the rim of the calyx within 

 the corolla. Anth. roundish, flattened, of 2 oblong tumid 

 lobes. Germcns numerous, oblong, lining the tube of 

 the calyx, interspersed with dense silky hairs. Sti/lcs 1 

 to each germen, lateral, smooth or hairy, all passing 

 through the Jloral receptacle proceeding from the rim of 

 the calyx ; in some cases united into a cylinder. Stigmas 

 obtuse. Fruit globular or ovate, formed of die perma- 

 nent, pulpy, coloured tube of the calyx, closed at the 

 summit, and lined throughout with the numerous, oblong, 

 angular, hard, bristly seeds, interspersed with rigid hairs. 



S/ir7ibs for the most part prickly, hairy and glandular. 

 Leaves alternate, in all our species deciduous, pinnate 

 with an odd leaflet, in one exotic species simple ; leaJJets 

 sessile, opposite, oblong, ovate, or roundish, simply or 

 doubly serrated, frequently glandular, dieir common 

 footstalk and ribs prickly, brisdy, or glandular. Stijmlas 

 oblong, acute, united laterally in pairs to the base of the 

 common footstalk; the uppermost changing to simple 

 hracteas. Tl. terminal ; solitary or aggregate, stalked ; 

 red, white, or yellow, more or less fragrant. Fruit called 

 the Hip, scarlet, or blackish, rarely eatable. This is the 

 most favourite genus of the whole vegetable kingdom, on 

 accountof its beauty and fragrance, but one of the most dif- 

 ficult with respect to the determination of its species. Mr. 

 Joseph Woods, in the essay above quoted, and Mr. John 

 Lindley, in a more recent Monograph, have gready il- 

 lustrated this subject. My learned friends Mr. Sabine and 

 Mr. Edward Forster have also flivoured me with many 

 valuable remarks. With these guides, and my own ex- 

 perience of 23 years since die publication of this genus in 

 the Flora Britcmnica, I proceed to a more accurate ac- 

 count of our British Roses. The terms I shall em})loy 

 are such as are in familiar use, dnougli every department 

 of botany, and therefore require no particular explana- 

 tion. 



I am obliged to decline die use of one word, first intro- 



2 B 2 



