24-ROSA SINOWILSONI Hemsl. 
RosaSi/io 7 ui/soiii : caule elongate, sarmentoso ; aculeissparsis, falcatis, aequalibus ; 
foliolis 5-7, oblongis, acutis, magnis, simpliciter serratis, rigidis utrinque glabris ; 
rhachi glabra, parce aciciilata ; stipulis adnatis, angustissimis, apicibus liberis, 
deltoideis, par\'is ; floribus pluribus in paniculum corymbosum dispositis ; pcdicellis 
elongatis, glabris ; calycis tubo subgloboso, nudo ; lobis lanceolatis vel ovato- 
lanceolatis, parce appendiculatis ; lobis linearibus, dorso glabris ; petalis albis, latis, 
sepalis duplo longioribiis, dorso pubescentibus ; stylis coalitis, longe protrusis ; 
fructu subgloboso, nudo; sepalis deciduis. 
R. Sinowilsoui Hemsley in Kew Bull. 1906, No. 5, p. 158. 
Stems sarmentose, 1 2-20 feet ; prickles scattered, falcate, uniform. Leaflets 5-7, 
oblong, acute, rounded at the base, 3-4 in. long, simply serrated, firm in texture, 
glabrous on both surfaces ; petioles glabrous, with a few small hooked prickles ; 
stipules adnate, very narrow, with small deltoid free tips. Flo^ucrs many, arranged 
in a very lax corymbose panicle ; pedicels glabrous, one or two inches long. Calyx- 
tube subglobose, glabrous, i in. long ; ovate-lanceolate, with a few linear erccto- 
patent appendages, naked beneath. Petals white, broad, twice as long as the sepals, 
pubescent on the outside. Styles united in a long column protruded beyond the 
disc. Fruit subglobose, glabrous ; sepals deciduous. 
This very hne new sj^ecies comes nearest to Rosa nioschata 
from which it differs by its very lax panicle, long pedicels and com[)ound 
sepals. It IS also much larger in all its parts. It was found by Mr. 
E. H. Wilson, after whom it is named, on Mount Omi and the hills 
to the south in the province of Sze-chuan m the south-west of China, 
at an elevation of 2,000 to 4,000 feet above sea-level. 
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