Rosa. | ROSACER. 439 
6. R. lasiocarpus, Sm.; Brand. For. Fl. 198.—A large scram- 
bling or decumbent shrub, armed with straight sharp prickles, the 
younger branchlets puberulous or pubescent; leaves unpaired-pin- 
nate, the rather short petiole and rachis terete, pubescent and 
armed with recurved prickles; leaflets in 4-3 (the upper ones in 
fewer) pairs with an odd one, almost sessile, oblong to oblong- 
lanceolate and ovate, acuminate or acute, rarely blunt, irregularly 
and rather coarsely serrate, above green and glabrous or appr 
pubescent, beneath covered with a white or yellowish, short, woolly 
tomentum, and strongly parallel-nerved ; flowers red or rose-coloured, 
on rather long or short densely pubescent pedicels, forming rather 
dense, pubescent, short, corymbose panicles at the end of the 
branches, or long-peduncled poor corymbs in the axils of the leaves ; 
bracts and stipules linear, entire; calyx pubescent-tomentose, the 
lobes acuminate or subulate-acuminate; petals shorter than the 
calyx, rotundate; fruits hemispherical, longer than the calyx, 
reddish, densely often greyish puberulous. 
Has.—Martaban, Karen hills. 
R. rosefolius, Sm.; Brand. For. Fl. 198.—A prostrate or 
ascending shrub, armed with numerous sharp straight prickles, the 
branches terete, sometimes somewhat pruinous and more or less 
covered with very long dark-coloured stiff hairs bearing on their 
curved apex a conspicuous gland, rarely the branches all glabrous 
or shortly glandular-pubescent ; leaves unpaired-pinnate, the petiole 
and rachis similarly clothed like the branches, but the prickles 
hooked-recurved ; leaflets usually in 8 (rarely in 4-2) pairs with an 
odd one, very shortly petioluled, ovate- or oblong-lanceolate, acumi- 
nate, coarsely and usually irregularly serrate-toothed, usually 1-2 
in. long, firmly membranous, sparingly pubescent or almost glab- 
rous, or glandular-pubescent, uniformily green, the strong nerves 
parallel, the midrib prickly beneath ; flowers white, long-pedicelled, 
forming very poor terminal or axillary corymbs, or often solitary 
and leaf-opposed; bracts and stipules linear-subulate; calyx from 
ost glabrous to hirsute-tomentose, the lobes subulate-acuminate ; 
petals spreading; fruit elongate-ovoid, yellow, glabrous, much 
longer than the calyx. 
Has.—Not uncommon in the drier hill forests and hill toungyas of Marta- 
_ban, at 3,000 to 4,000 ft. elevation; also Ava hills—Fl. April.—l. 
ROSA, L. 
Calyx-tube globose or ovoid, contracted in a longer or shorter — 
neck, the limb 5-lobed. Petals 5. Stamens numerous. Ovary of 
several or many distinct carpels enclosed in the calyx-tube, with a 
solitary suspended ovule in each, the styles protruding from the 
