POLYPETALAE. 85 
115 (a) Herbs or undershrubs. 116. 
(4) Shrubs or trees. 124. 
116 (2) Stamens 2-10. 117. 
(2) Stamens more than 10. 123. 
117 (az) Sepals 4 Petals 4. Stamens 6, four of 
which are longer than the two others, 
rarely fewer. Ovary 2-celled (very rarely 
3-4-celled) or transversely several-celled. 
Style undivided. Cruciferae. 
(4) Sepals 5 or 3. Petals 5 or 3. 118. 
118 (2) Segments of the calyx valvate in the 
bud. Stamens as many as the petals, 
and opposite tothem. Ovary 3-7-celled. 
Sterculiaceae. 
(6) Segments of the calyx imbricate in the 
bud. Stamens as many as the petals, 
and alternate with them, or more 
numerous. 119. 
119 (2) Ovary 2-celled. Style 1, with an entire 
or bidentate stigma, or styles 2. 120. 
(0) Ovary 5-celled. Style 1, with a 5-lobed 
stigma, or 5-partite, or styles 5, or a 5- 
partite sessile stigma. 121. 
120 (a2) Style 1, undivided. Undershrubs. Sta- 
mens 5. Asia, Africa, Australasia. 
Pittosporeae. 
(0) Styles 2, free. Herbs. Suxifrageae. 
