ROSA KAMCHATICA. 7 
botanic garden at Chelsea in 1791; and in the Lin- 
nean herbarium are seedling plants marked China, 
which I have no hesitation in pronouncing to be the 
present plant. To M. Ventenat however must be given 
the credit of having first made it known in his Jardin 
du Cels. It flowers most part of the summer at irre- 
gular intervals. The only spontaneous specimens I have 
seen are in the magnificent herbarium of Sir Joseph 
Banks. .They were ” collected by Nelson in Captain 
Cook’s last voyage, and differ from the cultivated plant 
in haying more ovate and numerous leaflets, smaller 
flowers, and less dissimilarity in the form of the prickles. 
Div. Il. Bracteate. Rami fructusque tomento persis- 
tente vestiti. 
This section, which probably extends across the continent of 
Asia, from Nepal to China, is readily distinguished from the 
preceding by the thick woolliness of its fruit, a peculiarity en- 
tirely confined to itself. Its leaves are very dense, usually shin- 
ing, and the prickles are placed under the stipulee i in pairs: the 
species which compose it may be considered to have their organs 
of fructification in the highest state of developement in the genus. 
The stamens vary from 350 to 400, and the ovaries from 140 to 
170; the former being twice por the latter three times as nume- 
rous as in the last section, which perhaps holds the next raph in 
the scale of developement. 
