44, KEY TO PLANTS. 
perigynous, 4, rarely 8. Ovary 4-celled. 
Stigma 1, 4-lobed, or stigmas 4. South 
Africa. Penaeaceae. 
70 (a) Leaves stipulate. 7h 
(>) Leaves exstipulate. 73. 
71 (a) Style 1, undivided (or styles several, 
wholly united). Stigma 1, entire or 
lobed. Ovules ascending. Trees. Peri- 
anth valvate. Stamens10-15. Filaments 
connate more or less, but frequently 
adnate to the gynophore. Ovary 5- 
lobed. Sterculraceae. 
(2) Styles several, separate or partially united. 
Stigmas several. Ovules descending. 
72. 
72 (a) Ovules parietal. Leaves simple, dentate. 
Stamens numerous, inserted within the 
disc, or disc wanting. Perianth-leaves 
distinct, imbricate. Asia, Africa. 
Biavneae. 
(2) Ovules axile. Leaves digitate, or simple 
and usually entire, rarely dentate; in 
the latter case stamens few, or inserted 
outside of the disc. Flowers unisexual. 
Euphorbiaceae. 
73 (a) Stamens 2. Style 1, simple, with 1-2 
stigmas. Disc wanting. Leaves op- 
a, 
