ROSACEA. 201 



g. Stems half-slu'uljby, not prickly. 



30. R. saxatilis, Lin. Rock Bramble. — e.b. 2233. l.c. 338 

 A. 14. C. 40. Lat. 51-61°. Alt. 0-900 yds. Tem. 46-38°. 



Stem erect, with (usually) a few minute prickles. Leaves ter- 

 nate, on long, hairy, prickly petioles ; leaflets ovate- elliptical, ta- 

 pering at both ends, serrated, downy. Flowers few, in a corymb, 

 yellow. Fruit 1-4 large red drupes. 



Near Settle, Yorkshire. In motmtainous, stony places. Shrub. 

 July- S eptember . 



31. R. Chamsemorus, Liu. Cloud-berry. — e.b. 716. l.c. 

 337. A. 11. C. 30. Lat. 53-59°. Alt. 200-1100 yds. Tem. 

 43-36°. 



Stems creeping underground, flowering-shoots erect, unarmed, 

 herbaceous, 6-10 inches high. Leaves simple, 5-7-lobed. Lobes 

 short, obtuse, plaited, toothed. Petals white. 



Note. — True stem underground, creeping, woody. (Mr. Ba- 

 bington.) 



Turfy bogs on lofty mountains. Perennial ; July, August. 



R. arcticus, L. Arctic Bramble. — (e.b. 1585. l.c. Excl. Sp.) 

 — Stem erect, one-flowered. Leaves ternate. Petals purple. — 

 Isle of Mull and on Ben Ghlo ? Said to be doubtful. Has long 

 disappeared. 



The fruit of this species is much esteemed in Sweden, and pre- 

 served for the tables of the great. 



Hooker and Arnott separate the Rubi into three sections, con- 

 taining as below : — 



Sect. I. R. idceus. 



Sect. II. R. suberectiis, R. fruticosus, R. rhamnifoUus, R. carpimfoUi(s, 

 R. corylifoUns, R. glandulosus, R. cas'ms. 



Sect. III. R. saxatilis, R. arcticus, R. Chamremorus. 



These judicious authors state, in a note (see Hooker and 

 Arnott's ''British Flora,' p. 122. ed. 7), their opinion oii\\Q Rjibi, 

 which is here condensed, viz. that all the Rubi comprehended in 

 Sec. 2 are mere varieties, approaching on the one side to R. idceus, 

 and on the other to R. saxatilis, with both of which many fer- 

 tile and permanent hybrids may have been formed and are still 

 forming. 



The following is Dr. Bell Salter's arrangement, which is a 

 modification of what may be called the modern views, represented 

 in this country l)y Mr. Babington and his followers : — 



26 " 2 d 



