PLANT FAMILIES: RAN UNCULACE^. 



271 



522. The following families are related to the crowfoot family. The water- 

 lily family, the magnolia family, and the barberry family with the May-apple 

 as an example (see figure 

 300). In all there is a 

 relationship shown by the 

 separate and usuall)' 

 numerous carpels. To- 

 gether they form a large 

 group, the polycarpicje. 



523. The poppy family (papaveraceae). 



— One of the commonest of the members 

 of this family in the eastern United States 

 is the bloodroot (Sanguinaria canadensis). 

 It occurs in open woods in .\pril and Way. 

 It derives its name from the abundant red 

 juice (latex) in the perennial root-stock. 

 The low annual shoot bears usually a 

 single white flower, and one leaf, some- 

 DetaiL^ of times more. The floral formula is as fol- 

 lows: Ca2,CoS(or Io),.-\ 00 .U2. 

 524. The fumitory family (fumariaceae). — To this famil)- belong the singu- 

 lar plants, " dutchman's breeches " and " squirrel-corn " (dicentra). They 

 occur in rich woods in April and M.i.\ . In the squirrel-corn (D. canaden- 

 sis) t^ere is a slender underground stem which bears here and there, as shown 



Fig. 356- 



Bloodroot (sanguinaria) 

 flower at left. 



