Argostemma .] 
LXXIV, RUBIACEAS. 
23 
Leaves 2 by 1 in.; nerves quite invisible; 
flowers 2 to 4; stamens as long . 
Leaves 1 by -3 in.; nerves invisible, 
flower 1 ..... 
Leaves linear acuminate, 3 by *i in. 
Stems slender, creeping; whole plant densely 
softly hairy; leaves ovate . 
Plant not densely hairy. 
Leaf oblong blunt, 1 by 4 in. 
Leaf lanceolate, rhomboid -75 in. long, 
crenulate ...... 
Leaves ovate acute, 3 by 1-5 in . 
Leaves lanceolate acuminate, 2 to 3 by -6 
to -g in. 
(34) A. enerve 
{35) A. grandiflorum 
{36) A. Curtisii 
{37) A. hirsutum 
(38) A. Hookeri 
(39) A. reptans 
(40) A. elongatum 
(4 1 ) A. Wrayi 
(1) A. acuminatum King, l.c. 143. - 
Glabrous except for a few minute scattered hairs. Stem fleshy, 
erect, simple, 4-angled. Leaves crowded at top of stem, mem¬ 
branous, 6 or 7, lanceolate acuminate, base narrowed, unequal in 
size; nerves 10 to 15 pairs; 3-5 to 6-5 in. long, 1 to 1*5 in. wide, 
glaucous beneath; petioles -i to *4 in. long. Stipules broad-based, 
acuminate. Cymes terminal; peduncles 2 in. long, simple or 
branched. Flowers *3 in. long, 7 or 8 together; pedicels *2 in. 
long. Calyx campanulate, lobes broad. Corolla three times as 
long as calyx. Capsule hemispheric, 15 in. through. Hab. Rare 
usually on limestone rocks. Selangor, Batu Caves. Perak, Leng- 
gong; Padang Rengas. Penang (Wallich). 
var. pubescens Ridl. l.c. with midrib and inflorescence pubescent. 
Perak, Temengoh (Ridley). 
(2) A. diversifolium Ridl. Journ. Roy. As. Soc. S. By. 57, p. 52. 
Succulent plant about 6 in. tall, glabrous. Leaves in a pseudo¬ 
whorl, 2 to 5, dark green above, pale beneath, base rounded or 
narrowed, the largest 5 in. long, 3 in. across; nerves 6 pairs. Stipules 
acuminate lanceolate. Cyme 3 in. long or less, many-flowered; 
pedicels -5 in. long. Bracts lanceolate to ovate. Calyx-lobes 
lanceolate-acute. Corolla lobes lanceolate sub-acute. Staminal 
cone longer, *4 in. long. Hab, Limestone rocks. Perak, Lenggong 
(Ridley). 
(3) .A. subinsequale Benn. PI. Jav. Rar. 95; King, l.c. 144. 
Fleshy herb 4 to 8 in. tall. Stem short. Leaves membranous. 
2 (rarely 3) broad ovate-oblong acute or acuminate, base broad or 
shortly cuneate, pale beneath, glabrous except a few hairs on the 
nerves beneath. Leaves slightly unequal, larger, 4 to 6 in. long, 
2*5 to 3-5 in. wide, smaller, 2 to 3 in. long, 175 to 2 in. wide; 
petioles -i to -2 in. long. Stipules lanceolate, ’3 to 75 in. long. 
Cymes 1 or 2. Flowers -3 in. long; pedicels longer or shorter 
pubescent. Calyx-tube campanulate, 4 lobes thin lanceolate longer. 
Corolla longer, lobes ovate-lanceolate acute. Anthers apiculate, 
bases thick, cordate. Hab. Perak (Kunstler). Distrib. Sumatra. 
I have seen no specimen from this region. 
