MONOCHLAMYDEAE. 51 
Stigma 1, usually entire. Fruit a berry. 
Herbs. Stamens 8 or more. Ovary 
1-celled or incompletely many-celled. 
Cytinaceae. 
(4) Plants of a green colour. Leaves well- 
developed. Stigmas_ several, rarely 
stigma 1, lobed. Fruit a capsule. 95. 
95 (a) Perianth 1-2-lipped or 3-lobed, valvate in 
bud. Stamens usually 6 and adnate to 
the style. Anthers dehiscing extrorsely 
(sometimes several of them laterally). 
Style 1, entire or cleft at the top. Ovary 
incompletely 4-6-celled. Flowers her- 
maphrodite. Aristolochiaceae. 
(4) Perianth 4-9-partite, regular or nearly so, 
imbricate or open in bud. Stamens free 
from the style, 4, 8,or more. Anthers 
dehiscing introrsely or laterally. Styles 
2-4, separate. Ovary 1-celled, with 
2-3 placentas, very rarely with 4, and 
then flowers dicecious. 96. 
96 (a) Herbs with entire dentate or lobed leaves. 
Flowers hermaphrodite. Styles 2-3, en- 
tire. Perianth-leaves 4-5, imbricate. 
Stamens as many or twice as many. 
Europe, Asia, America. Saxifrageae. 
(4) Herbs with dissected or pinnately-com- 
