ROSA RUGOSA. 5 
3. ROSA rugosa. 
R. armis confertissimis subzequalibus, pedunculo acu- 
leato. 
R. rugosa Thunb. jap. p. 213. Willd. sp. 2. 1070. 
Pers. syn. 2.48. Smith in Rees in loc. 
Ramanas Japonorum. Thunb. 
Vamanas? Icones Japonens. in bibl. Banks. 
Iiab. in Japonia (‘Thunb.) 
Known only from the account of Thunberg, whose 
description contains very little to distinguish this from _ 
R. ferox or kamchatica. He says it is called Ramanas 
by the natives of Japan 
In the collection of Japanese drawings in Sir Joseph 
Banks's library is the figure of a Rose marked Vamanas, 
which answers tolerably to Thunberg’s description, and, 
as the resemblance of the names seems to indicate, 
is probably the very same. Its branches are slender 
(downy Th.) armed with very dense, straight, nearly 
equal (unequal Th.) prickles; stipules (none in the 
figure) ; petioles (downy Th.) with several straightish, 
scattered prickles; Jeaflets 5-9, ovate, very rugose, 
simply serrated, obtuse (with an acumen, downy be- 
neath Th.), veins very close. Flowers solitary; bractew 
none; peduncle (downy Th.) beset with several straight, 
short, scattered prickles, which are poet and 
larger at its base; tube of the calyx (globose Th.) 
ot naked; sepals reflexed (hairy Th.) entire, very 
w,—two with a dilated, foliaceous, serrated end ; 
salalé spreading emarginate. 
Supposing this to be Thunberg’s plant, which we 
can scarcely doubt, it will be easily distinguished from 
- its nearest allies by the numerous leaflets, nearly equal 
prickles of the stem, and curved prickles of the pe- 
duncle, which last are remarkable for their form, as 
being situated on a part where they are usually slender, 
straight and mixed with setze in other species. ~~~ 
