46 Ceratophyllaceae, Ranunculaceae 



Tribe i. Nuphareae. K 6-12, C oo. Fruit a berr>'. 

 Flowers globose, yellow. Nuphar. 



Tribe 2. Tetrasepaleae. K 4, C 00 . 



Flowers expanded, white, blue, or red. Nymphaea. 



Fam. 2. Ceratophyllaceae. Submerged aquatics 

 with whorls of transparent, forked leaves, which later 

 become cartilaginous. Flowers solitary in the leaf axils, 

 haplochlamydeous, diclinous, monoecious. ^ perianth 

 about 12. Stamens 12-16. % perianth about 9-10. 

 Carpel i with one apical, orthotropous ovule with one 

 integument. Style long, subulate. 



Only genus : Ceratophyllum. 



Suborder 2. Ranunculineae. Flozuers spiral to 

 cyclic. Ovnles on the ventral suture. 



Fam. 3. Ranunculaceae. Mostly acrid herbs. 

 Leaves often divided. Flowers rarely completely cyclic, 

 haplo- or heterochlamydeous, in first case with petaloid 

 perianth between which and androecium honey-leaves 

 are often present, hermaphrodite, actinomorphic or zygo- 

 morphic. Stamens usually numerous, free. Carpels oc -i 

 usually free with 00 -i ovules. Fruit of one-seeded 

 achenes or many-seeded follicles, or a berry {Actaea). 

 Endosperm copious. 



A. Ovides on both sides of ventral suture, rarely 

 solitary. Fruit a follicle with 00 -i seeds. 



*Tribe I. Paeonieae. i^/i^w^r.? usually solitary, without 

 honey-leaves. Carpels fleshy. Outer integtiment longer 

 than inner. 



Only genus : *Paeonia. 



