Rosace®. 
161 
without aciculse!) R. Boreykiana Bess. (Differing only 
in the presence of acicular prickles and Is with 2 pairs 
of leaflets).—S. (Keuhausen). 6 coHina Jacq. 769. 
— Gen. higher shrubs, with laxer branches. FIs white or 
very pale rose. Peduncles long, gen. only with scattered 
stip. glands. (Back of cal.-divisions glabr.) Leaflets ellip¬ 
tic. Comp. R. dumetorum 44. 
44. Leaflets elliptic or oval, acute or acuminate, hairy 
on both sides or only underneath. Peduncles elongated. 
Styles more or less hairy or glabr. Shrubs gen. with lax 
branches. Differing from R. canina almost only in the 
hairy leaflets, which are almost always simply toothed 
(teeth not glandular). Cor. gen. white. R. collina Godet 
not Jacq.—a. typica (R. Deseglisei Bor., if the peduncles 
are hispid-glandular). Prickles not numerous, petioles 
gen. unarmed; leaflets grass-green or rather yellowish, 
rather hard, shining; teeth broader than in R. canina. 
Fr. gen. oblong. — b. nrbicct Lem. (platyphylla Rau, if 
the fr. is globular). Prickles rather more numerous; 
leaflets often bluisli-green, hairy only underneath on the 
nerves, thinner, with sharper teetli ; fr. ovoid or globular; 
transition form to R. canina.*)—Distrib. 6 
dumetorum Thtiill. 770. 
— Leaflets elliptic-obovate, often slightly cuneiform at the 
base and enlarged towards the top or slightly obtuse, 
with a dense, grayish villosity on both sides. Peduncles 
of moderate length, gen. rather shorter than in the 
last. Styles woolly. Shrub bushy. Fr. almost globular. 
Differing from R. coriifolia in the broader teeth, white 
fls with longer peduncles, and cal.-divisions reflexed 
on the fr. R. obtusifolia Clir. and Grml. not Desv.**) 
R. coriifolia scapli. Chr. (The R. coriifolia subcollina of 
Christ, includes the forms of R. coriifolia passing to 
R. dumetorum with cal.-divisions reflexed; his R. glauca 
subcanina includes the analogous forms between R. glauca 
and R. canina.)—Schaffh. 6 scaphuscensis Christ. 771. 
45 (40). Peduncles hispid-glandular, of moderate length or 
short. Styles hairy or almost glabr. Leaflets irreg. double 
toothed; teeth not very deep. Comp. R. abietina. 
*) Christ distinguishes also a form mollis with very gray-velvety 
leaflets and almost glabr. styles ; pseudocollina with more numerous prickles 
and peduncles covered with abundant stip. glands; brevissima with rounded 
leaflets and broad prickles, resembling R. tomentella. 
**) The true R. obtusifolia Desv. which I havo observed in the south 
of France, differs in harder leaflets with broader and rounded base, acute 
at the top, yellowish green (not grayish), closer, with prominent nerves under¬ 
neath; in glabr. styles, ovoid fr. &c. It forms a mean between R. dumetorum 
and R. tomentella affinis. 
