a ‘ 
Exacum. TETRANDRIA MONOGYNIA, ~ 397 
bases joined by a connecting membrane. Spikes terminal, 
generally three-fold, there being a larger, and longer in the 
centre, with a smaller on each side; long, slender, hairy, 
lengthening, and blossoming for three months, # lowers ge- 
nerally three-fold, sub-op posite, sessile, very numerous, small, 
pure white, and of a pleasant smell. Bractes lanceolate, one 
under each flower. Calyzx inferior, four, rarely five-toothed, 
villous. Coro! one-petalled, hypocrateriform. Tube the 
length of the calyx; mouth villous, border of four, rarely 
five, rounded, equal segments, Filaments short, inserted 
near the base of the tube of the corol. Anthers broad, sagit- 
tate, hid in the tube. Germ conical. (Style short. Stigma 
large, oblong, bisulcate, even with the tops of the anthers, 
Capsule ovate-oblong, two-celled, two-valved. Seeds meee 
numerous, imbricated, compressed, 
. Obs, The whiteness of the leaves, and pou sdoal of this 
plant, independently of its numerous, beautiful, small, fra- 
grant, pure white flowers, makes it highly ornamental, parti- 
cularly amongst plants with darker foliage. 
eylicr _ EXACUM. Schreb. gen. N. 185, 
“Calyx Iba lesvod. Corol salver-shaped. Capsule supe-: 
rior, two-celled, two-valved, Seeds many. | 
1. E, bicolor, R. 
Annual, erect, four-sided. Leaves sessile, ovate, five-nerv- 
ed, Flowers axillary ; apices of the segments of the anne 
blue, the rest white. Anthers erect, 4 
A native of shaves: where it appeere daring the oo se f 
‘son, 
Root almost seisins tia aia ieawies ‘Gasided' 3 an- 
gles somewhat winged, from one to two feet high, Leaves” 
sub-sessile, opposite, oval, five-nerved, smooth, size very vari- 
ous, Floral leaves small and narrow, Flowers pee 
