28 
lxxiv. RUBiACEiE. [ Argostemma . 
hairy, reticulations inconspicuous, 2-5 in. long, 1-25 in. wide. Small 
leaves ovate, acute sessile, edge ciliate, *5 in. long, '3 in. wade. 
Stipules similar, smaller. Cymes terminal and axillary; peduncles 
•25-in. long; pedicels two, 1*5 in. long, all densely hairy. Calyx 
campanulate with short teeth, hairy. Corolla -6 in. across, lobes 
narrow linear-lanceolate, hairy on back. Stamen-column longer. 
Capsule -2 in. long, hairy. Hab. Mountain forests, rare. Selangor, 
Sempang Mines, Semangkok (Ridley). 
(18) A. Klossii Ridl. Journ. Roy. As. Soc. S. Br. 61, p. 13 - 
Stem erect 4 to 5 in. tall, hairy, internodes short. Leaves 
unequal, larger one elliptic-lanceolate acute, base round inaequi- 
lateral, glabrous or sprinkled with hairs above, 2 in. long, *5 in. 
wide, back white, nerves hairy; petioles *1 in. long. Small leaves 
cordate-ovate *12 in. long. Stipules orbicular-round. Peduncle 
1 in. long, hairy with 4 ovate bracts in middle. Flowers 4 to 5 
in a simple or branched cyme; pedicels -12 in. long. Calyx cupular, 
lobes lanceolate, hairy. Corolla -25 in. across, lobes narrow lanceo¬ 
late. Staminal cone as long, thick. Fruit hairy. Hab. Forests. 
Johor, Ulu Sayong (Kloss). Negri Sembilan, Bukit Sulu (Cantley). 
Native name : Sumpa Kring. 
(19) A. involucratum Hemsl. Ic. PI. 1556; King, l.c. 151 
(Fig. 77, p. 27). _ ...... 
A slender creeping ascending plant, more or less hairy with 
short intemodes; stem ascending to 6 in. tall, leafy. Leaves 
membranous, very unequal, the larger ones oblique lanceolate, 
ovate or elliptic, narrowed to base, blunt, tip sub-acuminate, light 
green, edge often denticulate, densely or sparsely hairy on both 
sides, rarely glabrous; nerves 5 to 8 pairs, slightly conspicuous 
when dry; 1-25 to 4 in. long, *3 to 1-5 in. wide; petioles -i to -4 in. 
long; small leaves ovate, sessile, *i to *4 in. long. _ Stipules smaller 
ovate. Flowers 1 to 5 in a cyme; peduncle *2 in. long or more, 
generally hairy; pedicels -2 to -5 in. long. Bracts lanceolate, 
whorled. Calyx densely hairy, lobes long, lanceolate acuminate. 
Corolla -4 in. across, lobes lanceolate, often hairy outside. Anthers 
about as long. Capsule -i to -2 in. long, hairy. Sepals persistent, 
longer. Hab. Mountain forests from about 3000 ft. altitude 
upwards on banks and hill slopes, widely scattered over the 
mountain chain of the peninsula, and very variable, especially in 
its hairiness. 
var. glabrum, with nearly glabrous leaves (Hemsley's type-form), 
occurs on the Thaiping Hills and on Bujong Malacca, in Perak. 
var. hirsutum Ridl. A. hirtum Ridl. Journ. Roy. As. Soc. 
S. Br. 35, p. 14. 
Whole plant very hairy; leaves silvery beneath. Pahang, 
Gunong Tahan; Telom; K’luang Terbang (Barnes). Malacca, 
Mt. Ophir. Selangor, Semangkok Pass; Gunong Mengkuang 
Lebah (Robinson); Menuang Gasing (Kloss). Perak, Thaiping 
