Ranunculaceae 97 



cious, nodding on very slender pedicels in 

 an ample open panicle; calyx of 4-8 sepals 

 which soon fall, filaments purplish and 

 slender ; anthers linear and pointed ; achenes 

 lanceolate or somewhat sickle-shaped, nearly 

 half an inch long. 



Frequent in rich woods and moist shady 

 places at the lower altitudes throughout 

 the Rockies; flowering in June, like the 

 previous species striking for its leaves, re- 

 sembling a robust maiden-hair fern, and the 

 large loose heads of delicate tasselled flowers. 



Aquatic herb with submerged 

 Batrachium , 



stems, a foot long or more, 

 tnchophyl- 



lum (Chaix.) Leaves petioled, 1-2 inches long, 



Bossch. finely dissected. Flowers white 



White w i t h yellow centre, J-J of an 



inch broad, blooming on the 



Crowfoot. 



surface of the water on stout 

 pedicels 1-2 inches or more long. 



Frequent throughout the Rockies at the 

 lower altitudes in shallow ponds and ditches; 

 flowering in June and July. 



