584 
GENUS XXXV. ARGOSTEMMA. 
Pentandria Mouogynia. Ser; Syst: 
Deriv. From Argos, white, and Stemma, a crown, in reference 
to the terminal racemes of snow-white flowers. 
Gen. Cuan. Herbs usually covered with short down: leaves. 
opposite, sometimes verticilled: stipules foliaceous : peduncles ter- 
minal: flowers fascicled : *calyx-tube obconical: limb 3-5-cleft : 
lubes acute, valvate in estivation : corolla rotate, spreading: limb. 
3-5-oleft: stamens alternating with the lobes of the corolla: anthers 
large, exserted, cohering at the apex: style perforating a fleshy 
disk ; stigma globose : capsule crowned by the cay]x and an oper- 
cular disk, 2-celled, dehiscing in a radiating manner from the apex > 
receptacles convex, adnate ta the dissepiment: seeds numerous, 
angular. 
(1) A. otaBerrimum. (Dalz.) 
Ident. Dalz. Bomb. flor. p. 118.—Hook. Jour, Bot. EIT. p. 345. 
Spec. Cuan. Herbaceous, erect: leaves 4-verticilled, lanceolate ~ 
acuminate, unequal and unequal-sided : umbels trichotomous, few- 
flowered, shorter than the leaves: flowers pentamerous:: filaments. 
much swollen-at the apex. 
On trees in the Warree country. 
(2) A. cungatum. (Dalz.) 
Ident. Dalz. Bomb. flor, p. 118.—Hook. Jour. Bot. 
Spec. Cuar. Stem pubescent: leaves 2-4-verticilled, subses~ 
sile, vvate, unequal, sparingly puberulous on both sides: pedunéle. 
simple, glabrous, bearing a short many~flowered -umbel : bracts leafy, ' 
cuneate; flowers tetramerous: calyx and: pedicels pubescent: an- 
thers without beaks, 
On rocks at the Chorla Ghaut, flowering in August. 
(3) A. sarMentosuM. (MWall.) 
Ident. Roxb, fi. Ind. (Ed. Wall.) If. p. 324. 
Srzc. Cuan. Rather villous, creeping at the base and stolonife. 
rous: upper part of the stem erect: leaves ovate, obtuse, almost 
sessile, downy above, villous on the nerves beneath, disposed in two 
approximate pairs: umbel or corymbiform raceme terminal : flowers: 
8~4-parted, pure white: corolla 5 times longer than the calyx, 
On rocks on the hills at Schukragiri, near Rajmahal. 
(4) A. rosrratum. ( Wail.) 
Ident. Roxb. fl. Ind. (Ed. Wall.) IL. p. 326, 
