BOTANICAL NOTES. 239 



whorJed. Flowers trimerous. Stigmatic apices of the car- 

 pels distinct, alternate with the placentae. 



1. Platystemon. 



Tribe II. Eupapavere^. — Leaves mainly alternate. Flow- 

 ers rarely trimerous. Carpels completely combined, even 

 the stigmas confluent or radiate from a common center, 

 never more numerous than the placentce. Capsule ovoid or 

 oblong. 



2. Canbya. Trimerous, and stigmas opposite placentae. 



3. Arctomecon. Dimerous and stigmas alternate with 

 the placentae. 



4. RoMNEYA. Trimerous (but pluricarpellary), and stig- 

 mas over the septiform placentae. 



5. Argemone. Di- or trimerous. Stigmas over the 

 placentae. Style short, radiating. 



6. Papaver. Di- or rarely trimerous. Stigmas over 

 the placentae and radiating upon the convex or discoid sum- 

 mit of the ovary. 



7. Meconopsis. Dimerous. Stigmas over the placentge. 

 Style clavate. 



Tribe III. Hunnemanni^. Leaves alternate. Flowers 

 dimerous, erect in the bud. Stigmas confluent, with 2-mer- 

 ous divergent lobes. Capsules linear, hard, grooved, elas- 

 tically dehiscent from base to apes along the two placentif- 

 erous margins. 



8. Dendromecon. Shrubby. Leaves entire. Seeds 

 carunculate. 



Herbaceous. Leaves dissected. Torus excavated. SiigTnas 

 more numerous than the placentce. 



9. Hunnemannia. Sepals discrete. Stigma lobes short, 

 ovate. 



