RANALES BUTTERCUP ORDER 



RANUNCULACEAE BUTTERCUP FAMILY 



LIBRARY 

 NEW Yl 

 BOTANICAL 



G 



U 

 J 



Aquilegia 



Myosurus 



Ranunculus 



Actaea 





Sepals 3-15, separate, often petal-like, petals 3-20, or none, separate, 

 stamens many, pistils many, few or none, the ovary 1-celled, fruit an achene, 

 follicle or berry, 1 -many-seeded; flowers regular, sometimes irregular, usu- 

 ally clustered ; annual or perennial herbs, rarely woody shrubs or climbers, 

 with simple or compound leaves. 



1. Flowers regular 



1. Petals and sepals both clearly present 



a. Petals spurred 



b. Petals not spurred 



(1) Pistils several to many in each flower 



(a) Flowers greenish, tiny 



(b) Flowers yellow or white 



(2) Pistil 1 

 Petals lacking, sepals often petal-like 



a. Sepafs petal-like, white or colored 



(1) Leaves opposite; often climbing or trailing Clematis 



(2) Leaves alternate 

 (a) Stem with a whorl of leaves, i. e., an in- 

 volucre, below the flower 



Flowers 1-4 cm. wide; styles short, not 



plumy 

 Flowers 4-8 cm. wide ; styles long and 



plumy 

 Stems leafy, without an involucre 

 Leaves simple, toothed 

 y. Leaves deeply cleft or divided 



b. Sepals green or greenish-white, small 

 Flowers irregular 



1. Upper sepal spurred 



2. Upper sepal hood- or helmet-like 



x. 



v- 



(b) 

 x. 



Anemone 

 Pulsatilla 



Caltha 



Trollius 

 Thalictrum 



Delphinium 

 Aconitum 



