KEY AND FLORA 



6, united by the filaments to form 2 equal sets ; flowers irregular 



(Fumariaceae), Bleeding Heart Family, p. 66 



5, sometimes united over the pistil ; petals 5, one of them with a spur 



(Violacese), Violet Family, p. 109 



1 to many, sepals 2-8, petals 5-16, styles 3-8-cleft, ovary 1-celled with 



placenta axillary ; plants with fleshy leaves and mostly showy 

 flowers that open only in bright sunshine 



(Portulacacese), Portulaca Family, p. 52 



Stamens 4-7, petals 4-5 with long claws, ovary 1-celled, with as many 

 parietal placentae as divisions of the style 



(Frankeniacese), Yerba Reuma Family, p. 108 



6-8, the filaments united into a split sheath ; flowers irregular, super- 

 ficially resembling the Papilionaceae, sepals 5, petals 2; pod 

 2-celled, flattened contrary to the partition 



(Polygalaceae), Polygala Family, p. 98 



5, monadelphous at base, petals soon falling, capsule splitting into 

 twice as many divisions as stigmas 



(Linacese),.Flax Family, p. 98 



2 (rarely 3 or 4), petals 4, 2, or Avanting, calyx 4-toothed ; fruit winged 



from the summit, 1-seeded ; polygamous or dioecious trees or shrubs 

 with opposite compound leaves . . (Fraxinus), Ash, p. 128 



Ovary superior or nearly so. 



Stamens distinctly on the calyx or on a disk simulating 

 a calyx tube 



Numerous ; ovary simple or compound, free from or partly united to 

 the disk ; leaves alternate, with stipules that sometimes fall early ; 

 seeds without endosperm (Rosacese), Rose Family, p. 80 



Stamens indefinite, petals merging into the sepals, carpels numerous, 

 becoming akenes within a hollow disk; aromatic shrubs, having 

 opposite leaves and no stipules 



(Calycanthaceae), Sweet Shrub Family, p. 80 



Variable in number (5, 10, 20), carpels 2-5, completely or partially 

 united to the calyx, styles distinct ; leaves without stipules ; seed 

 with endosperm (Saxifragaceae), Saxifrage Family, p. 75 



10, distinct, monadelphous or diadelphous ; flowers papilionaceous ; 

 fruit a legume . . . (Papilionacese), Pea Family, p. 89 



Numerous, distinct ; flowers regular of 4 or 5 sepals and petals ; fruit 

 a legume (Mimoseae), Acacia Family, p. 95 



5 or fewer, petals minute and scale-like (or none) ; fruit a loosely 

 covered 1-seeded indehiscent pod enclosed in the persistent calyx ; 

 stipules papery (Hlecebracese), Sand Mat Family, p. 57 



