2611
R O S A Forsteri.
Forsterian Rose.
ICOSANDRIA Pplygynza.
Gen. Char. Cal. urn-shaped, fleshy, contracted at
the orifice, terminating in 5 segments. Petals 5.
Seeds numerous, bristly, fixed to the inside of
the calyx.
Spec. Char. Prickles slightly falcate, uniform. Leaflets
simply serrated, carinate, smooth above,
hairy beneath. Calyx-segments copiously pinnate.
Fruit between elliptical and globular.
Syn. Rosa Forsteri. Sm. Engl. FI. v. 392.
R. collina (3. Woods Tr. of L. Soc. v. 12. 219.
F iv e to eight, sometimes ten feet high, of stout and rather
dense growth. Prickles rather numerous, slightly
curved, their base in general but little dilated. The leaflets
are 5 more frequently than 7, closely set, ovate, somewhat
keeled, mostly rugose, and often twisted: their upper-
side pale green when young, dark when old, in all stages
suffused with a glaucous tinge ; their underside paler, with
hairs on the nerves and veins: the serratures are often
irregular, but in general quite simple, with points glandular
when young, afterwards callous. The leaf-stalks and stipules
are as in R . dumetorum, except that the former are
not sprinkled with glands. The ends of the young shoots
are remarkably tinged with brown. The leaf next the
flowers is usually obliterated, its stipules coalescing into
a broad ovate or lanceolate concave bractea, mostly longer
than the short bare flower-stalks. The tube of the calyx
is oblong, rather short; its segments fully pinnate; the
pinnae lanceolate, toothed, sometimes pinnatifid, each tooth
tipped with a minute gland. The petals are but little
longer than the calyx, pale pink, or often white; less