Tas. 8566. 
ROSA CORYMBULOSA. 
China. 
RosacgaE. Tribe Roser. 
Rosa, Linn.; Benth. et Hook. f. Gen. Plant. vol. i. p. 625. 
Rosa (§Cinnamomeae) corymbulosa, Rolfe; species distincta, inter affines 
ramulis inermibus vel parce armatis, floribus parvis numerosis et 
corymbulosim dispositis distinguenda. 
Fruter erectus vel scandens, parce ramosus, 1-2-metralis ; ramuli laeves, 
inermes vel interdum parce aculeati, aculeis geminatis rectis patentibus 
gracilibus 5-6 mm. longis basi latis, demum brunnei. Folia conferta, 
4-9 em. longa, 38-5-foliolata; rhachis puberula et sparse glandulosa, 
aculeis gracilibus paucis instructa ; foliola subsessilia, ovato-oblonga, 
subacuta, crebre duplicato-serrata, subtus glauca vel cinereo-puberula, 
15 cm. longa, 0°4-2 cm. lata; stipulae adnatae, anguste oblongae, 
acutae, 8-10 mm. longae, marginibus erebre glandulosis. Flores 
corymbulosi, numerosi, versus apices ramorum dispositi, 2-2°5 cm. 
diametro; pedunculi circiter 2 cm. longi, glanduloso-setulosi. grt ae 
culum ovoideo-oblongum, glanduloso-setulosum, 4 mm. longum. Calycis 
lobi ovato-oblongi, caudato-acuminati, puberuli vel subtomentosi, circiter 
8 mm. longi, patentes vel reflexi. Petala late obcordata. Filamenta 
glabra, 2-8 mm. longa, antheris aureis. Fructus globosus, glandulosus, 
circiter 8 mm. longus, sepalis persistentibus coronatus. Achaenia dorso 
villosa, 2 mm. longa; styli villosi, in columnam 4 mm. longam 
cohaerentes.—R. A. RouFe. 
The distinct and striking Rose here described is 
perhaps most nearly allied to £&. macrophylla, Lindl., but 
differs in being almost spineless when mature, and in 
having many small flowers which are borne in corymbs 
towards the ends of the branches. It was raised at 
Kew from seeds presented by Professor Sargent of the 
Arnold Arboretum, Jamaica Plain, Massachusetts, in the 
spring of 1908. These seeds had been collected in 
Western China in autumn 1907, under the field-number 
630a, by Mr. E. H. Wilson. The plant from which the 
material for our plate has been obtained flowered at 
Kew for the first time in July 1913. At present this 
plant is a bush about six feet in height, and promises to 
be a fairly vigorous grower, thriving well in the rather 
strong loam that roses as a whole delight in. R. corym- 
bulosa had previously been met with in China, for there 
Juny, 1914. 
