Ranunculaceae 47 



Tribe 2. Helleboreae. Flowers i or several. Carpel 

 wall ra.re\y fleshy. Oiiter integiiinent not longer than inner. 



I. Honey-leaves without spur. Sometimes absent. 



A. Leaves undivided or merely lobed. Honey- 

 leaves absent. Caltha. 



B. Leaves deeply lobed or compound. Honey- 

 leaves present. 



f Leaves palmately lobed or compound, 

 a. Honey-leaves flat with naked hone)'-pits. 



Trollius. 

 /3. Honey-leaves tubular, at least at base. 

 Leaves palmately divided, sepals membranous, de- 

 ciduous. *Eranthis. 

 Leaves pedate. Sepals herbaceous, persistent. 



Helleborus. 

 ft Leaves doubly ternate or pinnate, fruit a berry. 



Actaea. 



n. Honey-leaves with spur. 



1. Flowers actinomorphic with five honey-leaves. 



Aquilegia. 



2. Flowers zygomorphic with two honey-leaves. 

 Honey-leaves sessile, dorsal sepal spurred. 



*Delphinium. 

 Honey-leaves stalked, dorsal sepal hooded. 



©Aconitum. 



B. Ovule solitary at base of ventral suture. Achene 

 one-seeded. 



Tribe 3. Anemoneae (only tribe). 

 Shrubs. Leaves opposite. Sepals valvate. Clematis. 

 Herbs. Leaves spiral. Sepals 4-5, inconspicuous. 

 Honey-leaves o. Thalictrum. 



