Pladera, TETRANDRIA MONOGYNITA, 401 
which are again once or oftener dichotomous, all are four- 
sided, with a thin wing to each angle; height of the whole 
plant about a span. Leaves opposite, sessile, ovate, entire,’ 
_ three-nerved; differing much in size, the largest rarely an inch: 
long... Flowers solitary, in the divisions ot the plant, sessile, 
small, pale red. Calyx sub-cylindric, four-toothed ; teeth 
acute, Corol with the tube as long as the calyx. . Border 
three-cleft, two of the divisions equal, oblong, and crowded. 
at the apex, the third divided half way down. Filamenis 
four ; three longer, and inserted in the mouth of the tube ; the 
fourth just below the fissure of the bifid segments of the corol. 
Anthers equal, oblong. Germ linear-oblong. Style as long as 
the stamina. Stigma two-lobed ; lobes large, obovate, thin, 
Capsule sub-cylindric, nearly as long as the permanent ealya, _ 
and hid in it, one-celled, two-valved. | Receptacles consist in — 
the incurved margins of the valves, (parietal, ali — ) 
Seeds numerous, angular, — small, 
RP. iielpendidDs ia | 
Annual, erect, Sukakied, obranatien gpposite! alvciustes 
Leaves sessile, lanceolar, three-nerved. Flowers terminal, sub- 
panicled, — Bett 
-Exacum diffusum. Linn. sp. pl. ed. Willd. i. 637. 
Gentiana diffusa, Vahl, Symbol. iii. 47. 
- A beautiful erect, ramous annual; growing on the blinks of ; 
water courses, and on low fallow lands. ort time the 
wet season. 
Stem about a foot, or sometimes two feet high, erect, four- 
sided, ramous, smooth; inferior branches opposite, above al- 
ternate, very slender anal twiggy. Leaves opposite, sessile, 
the lower lanceolate, the upper broader, all are pointed, and 
three-nerved, entire, smooth; size various, Flowers numerous, 
terminal, peduncled, small, rose-coloured, Calyx four-tooth- 
ed, pe nt. Corol funnel-shaped. Border irregular, three- 
parted ; the two upper segments equal, and orbicular, the 
lower one two-parted; with a deep groove ; in the groove is 
VOL, I, Z 
