(48) 



5. Actaea. Calyx 4-sepalous. Anthers ad- 

 nate, introrse. Ovary 1. Placenta ven- 

 tral. Style 0. Berry oo-seeded. 



B. Petals 5. 



1. Heliautheraum. Calyx double. Exter- 

 nal sepals 2, somstiinesO; internal 3, con- 

 torted in aestivation. Capsule 3-valved. 



0. Petals 6. 



1. Argemone. Calyx 3-sepalous. Fila- 

 ments filiform. Stigmas radiate. 



2. Platystemon. Calyx 3-sspalous. Fila- 

 ments flattened their entire length, 

 ovary at List separating into its com- 

 ponent carpidia. 



3. Platystigma. Calyx 3-sepalous. Fila- 

 ments flattened only at the base, ovary 

 not separating but ripening into a 3- 

 valved capsule. 



II, Di- Tri-, Tatra-, Panta-, Polygaia, 



A. Ovaries ventrally dehiscent. Fruit a follicle. 



a. Flowers irregular. 



1. Pelphinium. Calyx petaloid. Superior 

 sepal calcarate. 



b. Flowers regular. 



1. Platystemon. Sepals 3, caducous. Pet- 

 als 6. Filaments flattened. Carpidia at 

 first united into an oo-celled ovary. 



