30 
3 to 4 mm. long, obtuse at both ends; style equalling the 
stamens, glabrous; stigma cleft into 4 mm. long flattened arms; 
ovary sunken in a thick basal pericarp, 2-celled, apex with a 
large disk; ovules numerous in each cell; seeds chiefly united 
by a central pulpy mass, black, obscurely pitted, 0.5 mm. long, 
fusiform, ends acute. 
Type specimen 847, E. B. Copeland, Samal Island, Pro- 
vince of Davao, Mindanao, April, 1904. 
* * Leaves wholly glabrous; calyx also glabrous. 
+ With axillary spines in the old leaf axils. 
4. R. uncaria n. sp. A scandent shrub, with smooth 
ultimate branches, the stems and larger branches usually 
provided with stout recurved thorns. Leaves glabrous, smooth 
on both sides, elliptic to oblong or lanceolate to oblance- 
olate, 5 em. wide, 15 em. long including the 1 cm. long pe- 
tiole, acute or acuminate, obtuse or rounded at the base, 
midnerve and 5 to 7 lateral pairs very prominent beneath; 
stipule glabrous, 4 mm. long, broad at the base, sharply 
pointed. Inflorescence terminal, cymosely branched, upon 
short rigid peduncles; branchlets short, subtended by acute 
connately united bracts; pedicels 5 mm. long, subtended by 
2 unequal acute bracts; calyx tubular, 7 mm. long, pul- 
verulent, bearing 5 to 7 sharply pointed teeth; tube of co- 
rolla 2 em. long, slender, glabrous on the exterior, pubes- 
cent on the interior from the throat down to the middle; corol- 
la segments 5, about 12 mm. long, 4 mm. wide, obtuse or 
acute; stamens 5, inserted upon the throat; filament very 
short, pubescent, thread like; anther linear, 6 mm. long, ac- 
uminate at apex, sagittate at base; style glabrous, little ex- 
ceeding the corolla; stigma cleft and flattened into 2 arms; 
fruit subglobose or a trifle elongated, 1 em. in diameter, 2-celled; 
seeds triquetrous, black, 3 to 5 in each cell, embedded 
in a pulpy mass. 
Type specimen 7001, A. D. E. Elmer, Mount Mariveles, 
Province of Bataan, Luzon, November, 1904. 
+ + Without spines, 
++ Leaves chartaceous; corolla very short tubular or subeampanul- 
ate; inflorescence paniculate. 
