132 ROSACES. [RosA. 



Midway between rubiyino'sa and cani'na. From Roxburgh southd. ; Ireland ; 

 Channel Islands. VAR. Briyys'ii, Baker ; large and luxuriant, leaflets larger 

 less glandular beneath, peduncles and fruit naked, sepals more pinnate 

 eglandular on the back. Plymouth. R. Hys'trix, Leman, is small, leaflets 

 narrow glabrous, calyx-tube glabrous, peduncle densely aciculate. Box-hill, 

 Oxfordshire, Bristol. 



Sub-sp. R. AGRESTIS, Savi ; laxer in habit than rubiyinosa, prickles with a few 

 bristles and glandular hairs intermixed, leaflets small narrowed to both 

 ends glabrous but densely glandular beneath, peduncle and ovoid fruit 

 naked, sepals subpersistent, disk moderate, styles pubescent. JR. se'pium, 

 Thuill. Surrey, Sussex ; Ireland. VAR. R. JBilliet'ii, Puget (R. se'pium, 

 Borrer) ; differs only by its leaves rather hairy beneath, and rounded at the 

 base. Warwickshire. R. inodo'ra, Fries. (R. pulverulen'ta, Lindl. not M. 

 Bieb.),is much taller, flowers If in. diam., leaflets larger rounded at the base, 

 sepals more copiously pinnate, fruit ovoid. England, local. VAR. crypto- 

 po'da, Baker ; differs from the last principally by its very short peduncles 

 and round fruit. West Yorkshire. 



5. R. hiber'nica, Sm. ; small, erect, branches short, prickles rather 

 crowded gradually passing into bristles, leaflets simply-serrate glabrous or 

 pubescent beneath wholly eglandular, peduncles naked, sepals persistent 

 naked on the back, fruit erect globose naked, disk moderate. 



From Sutherland southd.; Ireland; ascends to 1,000 ft. ; fl. June-July. 

 Intermediate between spinosis' sima and cani'na, most like the latter ; 

 (a hybrid, Christ.). Branches sometimes arching ; prickles stout, curved. 

 Leaflets with rarely cut serratures, glaucous green above, nerves beneath 

 thinly hairy ; petiole pubescent ; stipules nearly naked on the back, auricles 

 gland-ciliated. Flowers sometimes 12. Peduncles and broad calyx- tube 

 always naked. Sepals leafy. Petals pale pink. Fruits in October. 

 DISTRIB. France; very rare on the Continent. 



R. liibernica proper (yla'bra. Baker); leaflets glabrous, serratures sharper, 

 peduncle naked. Resembles R. cani'na. VAR. cordifo'lia, Bakor ; prickles 

 more slender and denser, leaflets almost glabrous beneath, terminal 

 1^ in., serratures more open and obtuse, peduncle bristly and glandular. 

 Northumberland . 



6. R. cani'na, L. ; bush large, branches long arching, prickles scattered 

 uniform stout broad hooked base thickened, leaflets eglandular (except 

 rarely the midrib and veins beneath) glabrous or thinly hairy acute very 

 sharply toothed, peduncle usually naked, sepals usually naked rcflexod 

 pinnate, styles free or nearly so hirsute, fruit ovoid urceolate orsubglobo.se, 

 mouth of disk conspicuous. Dog Rose. 



Thickets, hedges, &c., N. to Orkney ; ascends to 1 ,350 ft. in Yorkshire ; Ireland ; 

 Channel Islands ; fl. June-Aug. Of the above characters, most disappear 

 in one or other of the following 29 varieties, which Mr. Baker has system- 

 atized with great care. In its common form, this is the largest and freest 

 growing of British roses, and may be distinguished from spinosis' sima by the 

 hooked prickles and habit, from villosa by being more glabrous, from rubiyi- 

 nosa by being eglandular, and from arven'sis by the free styles. DISTRIB. 

 Europe, N. Africa, Siberia. 



