ROSA.] .ROSACES. 131 



7?. involu'ta proper (var. Smith'ii, Baker) ; dwarf, mature leaflets glabrous 

 above hairy and eglandular beneath, serratures close sharp ; flowers soli- 

 tary, calyx-tube densely acicular, sepals simple. VAR. E. Sabi'ni, Woods ; 

 prickles ^ in. straight, leaflets with copious compound serratures thinly 

 pubescent above, petioles and peduncles densely hairy glandular and bristly, 

 calyx -tube subglobose more or less setose, sepals pinnate, fruit subglobose. 

 R.gra'cilis, Woods; R. niva'lis, Don ; R. corona'ta, Crep. The most common 

 form. YAB. R. Donia'na, Woods; small, leaflets more densely hairy, flowers 

 solitary, sepals hardly pinnate, calyx-tube and fruit densely prickly. Dry 

 places. Approaches R. mollis'sima. VAR. graciles'cens, Baker ; robust, 

 leaflets thinly hairy on both surfaces eglandular beneath much toothed, 

 terminal 1-1^ in., flowers 3-6, calyx-tube glabrous ellipsoid. Antrim. 

 VAR. Robcrtso'ni, Baker ; sepals of Sabi'ni, but teeth of leaflets sharper and 

 less compound, upper surface glabrous when mature, calyx-tube sometimes 

 naked. Newcastle, Yorkshire, Antrim. VAR. Nicholso'ni, Crep. ; densely 

 setose, leaflets broadly ovate glabrous above, glandular beneath with hairy 

 nerves, teeth very compound glandular. VAR. laviya'ta, Baker ; leaflets of 

 Sabi'ni, petiole villous and glandular rarely L bristly, peduncle and calyx-tube 

 glabrous, sepals simple eglandular, fruit depressed globose. Yorkshire, 

 Antrim, and Derry. VAR. Moor'ei, Baker ; prickles very stout | in., leaflets 

 densely glandular beneath, petiole peduncle and calyx-tube densely setose 

 and glandular, the larger prickles curved, sepals slightly pinnate. Derry. 

 Approaches R. rubigino'sa.'VAR. occidenta'lis, Baker; near Wilso'ni, but 

 leaflets smaller and petioles and peduncles glandular and bristly, calyx-tube 

 globose. Ireland, locality unknown. VAR. R. Wilso'ni, Borrer ; tinged with 

 purple, prickles as in Sabi'ni, leaflets often cordate terminal large glabrous 

 above, ribs thinly hairy and subeglandular beneath, serratures simple, calyx- 

 tube almost glabrous, sepals nearly simple, fruit subovoid. Menai Straits, 

 Derry. Approaches R. rubel'la. 



4. R. rubigino'sa, L. ; bush small, branches erect or arching, prickles 

 stout at the base scattered hooked with often glandular hairs and bristles 

 intermixed, leaflets densely glandular aromatic glabrous or thinly hairy, 

 ilowers 1-3, sepals subpersisteht, fruit globose ovoid or oblong. 

 Best distinguished by its suberect habit and copious glandular pubescence, 

 which gives out the strong sweetbriar odour ; this, however, becomes fainter 

 in the forms that pass into R. canina and R. mllosa. Europe, N. and W. 

 Asia to N.W. India ; introd. in N. America. 



R. RUBIGINO'SA proper ; very sweet-scented, erect, branches compact, prickles 

 with a few bristles and glandular hairs intermixed, peduncles densely 

 bristly, leaflets glabrous above, pubescent beneath, sepals densely glandular 

 pinnate, fruit globose. R, Eylante'ria, Woods. Chalk hills, S. of England, 

 native ? ; probably not indigenous in Scotland and Ireland ; Channel Islands, 

 Sweetbriar. VAR. R. permix'ta, Deseg. ; leaves and styles glabrous, sepals 

 deciduous, fruit ovoid. Box-hill. Approaches micran'tJia. R. syliic'ola, 

 Deseg. and Rip., is less scented, prickles more slender, leaflets hairy and 

 less glandular beneath, styles hairy, fruit ovoid. N. Yorkshire. 



and 1-2 leaflets, styles glabrous, fruit urceolate scarlet, disk evident. 



K 2 



