24 NATURAL ORDERS AND 
twisted wstivation. Stamens equal in number, and alternate, with 
the petals united at the base into a hypogynous ring, with a tooth (an 
abortive filament) between cach. Anthers ovate, innate, two celled. 
Ovary with about the same number of cells as there are sepals. 
Styles equal in number with the cells. Stigmas capitate. Fruit a 
globose capsule, pointed with the indurated base of the styles, many 
celled, each cell partially divided in two by an imperfect dissepiment, 
and dehiscing with two valves at the apex. Seed solitary in each 
cell, compressed, inserted. Albumen usually absent, but the inner 
lining of the testa is tumid. Hmbryo straight, with the radical point- 
ing towards the hilum. Cotyledons flat.—Herbaceous plants or small 
shrubs, with entire leaves, without stipules. 
GENERA. 
Petals five, capsules ten celled..........+. Linvy, v. 1, p. 452. 
Petals four, capsules eight celled......... Raproxa, v. 1. p. 219%. 
ORDER XXII. BALSAMINEAL —A. Ricuarp. 
Perianth double. Calyx of two deciduous sepals, with an imbri- 
cated estivation Petals four, irregular, hypogynous, the two outer 
ones alternate with the sepals, and callous at the apex, the upper one 
arched, emarginate, the lower entire, prolonged at the base into a spur. 
Stamens five, hypogynous, the three lower standing opposite the 
petals, and bearing anthers, with two perfect cells, the two upper 
placed in front of the upper petal, with anthers one or two celled. 
Filaments thickened at the apex. Anthers partly connate, bursting 
lengthwise. Ovary single. Stigmas five, sessile, distinct or united. 
Fruit a membranous capsule, five celled, five to ten valved, bursting 
elastically. Placenta central, five angled, the angles connected with 
the suture of the valves by thin membranous partitions. Seeds nu- 
merous, pendulous, without albumen. Embryo straight. Radical 
superior. Cotyledons plano-convex.—Succulent herbaceous plants. 
Leaves simple, without stipules. Flowers axillary. 
GENERA. 
SEISMIAS UNITE 20.06... ce cece se secennscn ees IMPATIENS, V. i. p 313. 
ORDER XXIII. OXALIDE.—De Canp. 
Perianth double, Sepals five, equal, persistent, imbricated in esti- 
vation. Petals five, hypogynous, equal clawed, with a spirally twisted 
wstivation. Stamens ten, the filaments more or less united at the 
base, those opposite the petals forming an inner series, and longer 
than the others, Anthers two celled, innate. Ovary free, of five 
