POLYPETALAE. 57 
4, (a) Leaves undivided. Ovules~2>or more, 
attached to a basal or central placenta. 
Embryo-surrounding a mealy albumen. 
Herbs or low shrubs. Flowers regular. 
Calyx—and~corolla imbriecate Style 
divided at-the-top into several stigmatose 
branches. Portulaceae. 
(4) Leaves lobed or dissected. Ovulesat- 
tached-to-2-or more parietal placentas, 
of which sometimes only 1 is fertile, 
bearing a-single ovule. Embryo minute, 
at the base of a fleshy albumen. Herbs 
or low shrubs. Leaves exstipulate. 
‘Calyx-—andcorolla.imbricate; Stamens 
hypogynous, 4,6, or many. Style short 
or 0. Stigmas several or a lobed one. 
Papaveraceae. 
5 (a) Perfect stamens 1-10. 6. 
(0) Perfect stamens more than 10, 40, 
6 (a2) Style 1, simple, with 1 stigma or with 
several stigmas connected at their base, 
or sessile stigma 1. (¢ 
(4) Styles 2 or more, free or partially united, 
with separate stigmas, or sessile stigmas 
2 or more. 51. 
7 (a) Ovules 1-2. 8. 
(6) Ovules more than 2. 19. 
