Oldenlandia.] 
LXXIV. RUBIACE^E. 
53 
(i) 0. nudicaulis 
Leaves whorled at base of stem, elliptic 
Leaves scattered. 
Flowers in terminal or axillary cymes not much 
longer than the elliptic oblong leaves. 
Calyx-tube winged ...... 
Calyx-tube not winged ..... 
Cymes x to 2 in. long, slender branched. 
Flowers on slender branches violet 
Flowers 2 to 4 on slender axillary pedicels white. 
Flowers cymose pink ..... 
Flowers solitary axillary, white pedicelled; leaves 
linear ........ 
Flowers solitary axillary sessile. 
Leaves narrow ...... 
Leaves round-ovate ..... 
(2) 0. alata 
(3) 0. paniculata 
(4) 0. dichotoma 
(5) 0. corymbosa 
(6) 0. rosea 
(7) 0 . Heynei 
(8) 0. diffusa 
(9) 0. trinervia 
(1) O. nudicaulis Roth. Nov. Sp. 85; King, lx. 167. 
Small glabrous annual 4 to 6 in. tall; stem 1 to 2 in. tall with 
several whorls of 3 to 4 elliptic-blunt leaves narrowed at base, 
•7 to 1*5 in. long, -35 to *65 in. wide. Cymes lax corymbose simple 
or branched, 1 or more terminal, 1*5 to 3-5 in. long. Flowers 
•15 in. long, white. Calyx cylindric, teeth small lanceolate. Corolla 
much longer, lobes blunt. Capsule turbinate. Hah. Lankawi 
islands (Curtis). Distrib. Indo-Malaya. 
(2) O. alata Koen. in W. and A. Prodr. 413; Hook. fil. F.B.J. 
iii. 70. 
Glabrous succulent annual, 6 to 12 in. tall, branched, stout. 
Leaves elliptic or elliptic-lanceolate (upper ones ovate) blunt or 
sub-acute, nerves invisible, narrowed at base to a distinct petiole 
or sub-sessile, 175 to 2 in. long, *3 to -4 in. wide; petioles -3 in. 
or less long. Cymes axillary capitate, 3- to 5-flowered. Calyx- 
tube 4-winged. Capsule -2 in. long, obovoid 4-angled and winged 
with 4 large calyx-lobes. Hah. Gardens or open country. Not 
common. Malacca, Residency. Gardens. Perlis, Kanga (Ridley). 
Distrib. India, Java, Siam. 
(3) O. paniculata Linn. Sp. PI. 1667; King, l.c. 168. 
Glabrous annual erect, branched; branchlets 4-angled or winged. 
Leaves thin elliptic sub-acute, base narrowed; nerves indistinct; 
■4 to 75 in. long, -2 to -3 in. wide; petioles -i in. long. Cymes 
terminal or in upper axils on peduncles as long or twice as long as 
leaves, lax few-flowered. Flowers under -i in. long, white. Calyx 
campanulate, teeth 4. Corolla little longer. Capsule turbinate 
over *1 in. across. Hob. Waste places. Singapore, Tanglin. 
Perak (Scortechini). Tringganu (Yapp). Distrib. Indo-Malaya, 
China, Polynesia. 
(4) O. dichotoma Hook. fil. F.B.I. iii. 67; King, lx. 168. 
Much-branched slender annual over 12 in. tall glabrous or 
sparsely hairy. Leaves membranous narrow-oblong lanceolate 
sparsely hairy, 75 to 1-25 in. long, *1 to -2 in. wide; petioles *05 in. 
long or less. Cymes axillary and terminal with numerous long 
slender dichotomous branches, 1 to 2 in. long, axillary -3 to ‘5 in. 
