318 DOWNY ROSE, SWEET BRIAR, ETC. 



t Calyx-tube globose, prickly or bristly. 



Rosa villosa, L. Downy Rose. Erect bush with rigid 

 branches, slender, nearly straight prickles, and downy 

 leaves and no glandular hairs. 



Flowers few, large, in groups of 1 3, rose-red or 

 rarely white. Sepals persistent, somewhat pinnate, with 

 glandular hairs on the back. Styles free. Fruit globoid, 

 bright red, with erect sepals and small prickles. 



ft Calyx-tube devoid of prickles or bristles. 



Foliage, &c., glandular -hairy and sweet- 

 scented; flowers small, solitary pink. Calyx- 

 tube smooth. 



R. rubiginosa, L. Sweet Briar, Eglantine. Shrub with 

 sub-erect slender branches, with scattered slender hooked 

 prickles mingled with glandular hairs ; leaves very glandu- 

 lar beneath, and sweet-scented. 



Flowers few, in groups of 1 4, rose-pink, on setose 

 peduncles. Sepals persistent, pinnate; styles free, hairy. 

 Fruit pyriform to sub-globose, with small disc, glabrescent. 



Foliage not aromatic; calyx-tube smooth. 



l~~l Styles united into a column; calyx-tube 

 globoid ; sepals entire, deciduous ; flowers 

 white and scentless. 



R. arvensis, L. Field Rose. Stem arched or trailing, 

 with strong, hooked, equal prickles ; leaves pubescent, 

 especially beneath. 



Flowers pink or white, in groups of 3 6, on prickly 

 and setose peduncles. Sepals reflexed, deciduous, pinnate ; 

 styles united into a column. Fruit ovoid, with promi- 

 nent disc. 



