KEY TO THE FAMILIES 285 



HHH. Stamens 5 or 10 united at base, some 

 sterile : leaves simple : fruit 5-lobed, 

 carpels separating from central axis 



when ripe GeraniacecK, p. 341 



HHIIH. Stamens 5-10: leaves compound: fruit a 

 leathery 1-3-valved pod and liower 

 irregular: or, fruit a 3-celled inflated 



(bladdery) pod and flowers regular 



Sapindaceae, p. 343 

 HHHHH. Stamens usually 10, monadelphous, diadel- 



phous, or distinct : fruit a legume 



Legnniinosce, p. 347 

 FF. Plants herbaceous. 



G, The stamens 10 or more. 



H. Ovary 1, simple: fruit a 1-2-seeded berry.. 



Berberidaceoe, p. 328 

 HH. Ovaries several, simple. 



I. Stamens indefinite, hypogynous 



Hanunculacea, p. 323 

 II. Stamens indefinite, inserted on cup-like 



receptacle Bosaeexe, p. 353 



HHH. Ovary compound. 



I. Water plants: leaves flat and floating, or 



heart-shaped and erect 



Nymph(eace(v, p. 329 

 II. Land plants. 



J. Ovary compound and 1-celled. 



K. With central placentae, many- 

 ovuled: plants juicy (watery). 



PortuJacacecB, p. 339 

 KK. With 2 or more parietal placentae: 



colored or milky juice 



Papaveracece, p. 330 

 KKK. With 3 or more parietal placentae: 

 leaves opposite: juice not 

 milky: flowers yellow, cymose. 



HypericaceiK, p. 338 

 jj. Ovary compound, several-celled: sta- 

 mens monadelphous.. .ilfaZfrtcecp, p. 340 

 GG. The stamens 10 or less in number. 



H. Ovary single, 1-celled, simple or compound. 

 I. Corolla regular or nearly so. 

 J. Sepals and petals 4-5 each. 

 K. Leaves alternate. 



L. Stigma 1 Leguniinosiv , p. 347 



LL. Stigmas 4 Saxifragacece, p. 361 



