51— ROSA PRATTII Hemsl. 
/'^os (7 Praftii : caule arcuato ; aculeis conformibus, subrectis, modice robustis, 
saepe g'eminis infrastipularibus ; foliolis 1 1-13, oblongo-lanceolatis, acutis, parvis, 
rigidulis, simpliciter serratis, iitrinque glabris ; rhachi glabra, aciculata, hand glandu- 
losa ; stipulis adnatis, apicibus liberis, ovatis, patulis ; floribus paucis, corymbosis ; 
pedicellis hispidis ; calycis tubo angusto, parce aciculato ; lobis ovatis, acuminatis, 
simplicibus, dorso glandulosis ; petalis riibris, parvis ; stylis villosis, liberis ; fructu 
subgloboso, glanduloso, rubro, sepalis persistentibus coronato ; carpellis dorso et 
apice pilis setiformibiis subluteis vestitis. 
R. Prattii Hemsley in Joiirii. Linn. Soc. vol. xxix. p. 307, t. 30 (1892). 
Stems arching ; prickles uniform, nearly straight, moderately stout, spreading, 
often in infrastipular pairs. Leaflets 1 1-13, oblong-lanceolate, acute, simply serrated, 
firm in texture, glabrous on both surfaces, the end one under an inch long ; petioles 
glabrous, aciculate, not glandular ; stipules adnate, with small, spreading free tips. 
Flowers few, corymbose ; pedicels densely hispid. Calyx-tube narrow, slightly 
aciculate ; lobes ovate-acuminate, simple, i-i in. long, glandular on the back. Petals 
bright red, i in. long. Styles free, villous. subglobose, glandular, red; sepals 
persistent ; carpels clothed with yellowish bristle-like hairs on back and apex. 
Rosa Prattii is nearly allied to Rosa macrophylla Lindl., but is 
readily distinguished from it by its numerous small and closely arranged, 
narrow, obscurely toothed leaflets. 
Mr. A. E. Pratt, naturalist and traveller, collected this rare and 
extremely interesting Rose in 1890 in west Sze-chuan on the frontier 
of Tibet at an elevation of about 9,000 feet, and he discovered it also 
in the neighbourhood of Ta-Chien-Lu on the borders of Tibet, western 
China. It is a distinct and interesting species, and it is to be hoped 
it may be introduced into cultivation in this country ; up to the present 
it is only known to us in a dried state. 
161 
