Plectronia.] RUBIACER. 85 
2 or 1 one-seeded pyrenes. Albumen fleshy. Embryo central, the 
radicle long, superior—Armed or unarmed shrubs or trees, with 
ee interpetiolar stipules. Flowers small, in axillary cymes or 
lusters. 
O Pyrenes quite smooth, triangular, and almost keeled ; 
all parts quite glabrous ; flowers in dichotomous elon- 
gate-branched cymes . ‘ . ‘ 7 . P. glabra, 
©.O Pyrenes more or less wrinkled and tubercled, round- 
ed on the back, 
All parts glabrous and glossy; flowers ¢ymose —. « P. didyma, 
ym j 3 
Branchlets and nerves pubescent; flowers on capillary pedicels, 
solitary or by pairs . ; * ‘ . ‘ . . P. gracilipes. 
Armed with usually decussately opposite or rarely ter- 
nary sharp spines. renes more or less wrinkled or 
tubercled, rounded on the back. 
© Branchlets more or less rusty- or tawny-pubescent. 
Leaves pubescent on both sides or hispid above; drapes the size 
of a pea cha, : 3 . i & . » P. parvifolia. 
Leaves glabrous or the midrib beneath slightly pubescent ; drupes 
the size of as cherry . : : an . P, horrida, 
All parts perfectly glabrous. 
Leaves glossy, caudate-acuminate ; flowers clustered ;. - P. angustifolia, 
Leaves more or less blunt; flowers in peduncled cymes ° . P. parviflora. 
i. 2 Bth. and Hf.—An evergreen small unarmed 
tree, all parts quite glabrous; stipules from a broad base acumi- 
nate ; leaves ovate-oblong to oblong-lanceolate, tapering in a 3-5 
lin. long petiole, shortly acuminate, 4-6 in. long, entire, thin- 
coriaceous, glabrous, opaque, pale-coloured beneath; flowers s LA 
white, on 1-2 lin. long glabrous pedicels, forming a short-peduncled, 
axillary, glabrous cyme with elongate dichotomous branchings ; 
calyx obversely turbinate, glabrous, about 4 a line long; corolla- 
tube almost spherically inflated, about a line long, the lobes about 
as long, spreading ; stigma capitate mitre-shaped ; drupes obovate- 
oblong, 4-3 in. long, somewhat notched at the apex, smooth, green, 
containing 2 smooth 3-angular-keeled ovate pyrenes rather abruptly 
narrowed and compressed at one end. 
Hax.—Tropical forests of the southern spurs of the Pegu Yomah and 
—Fr. Jan.—s.—SS.—=Lat. p. 
Ta, 
Tenasserim. 
2. P. didyma, Bth. and Hf. ; Bedd. Sylv. Madr., t. 221 (under 
Canthium.)—An evergreen large unarmed shrub growing out into 
a small tree, all parts quite glabrous and glossy ; stipules from a 
broad base linear, acuminate; leaves from elliptically to oblong- 
lanceolate, acute at the base and somewhat decurrent on the strong 
long flexuose or curved licels, forming a rather short-peduncled 
(peduncle 4-1 in. long) glabrous cyme in the axils of the leaves; 
