ANALYTIC KEY TO THE FAMILIES xiii 



Ovary 2-many-oelled ; stamens on the calyx. 

 Style 1 ; stamens 4-8 . . . Onagracece, p. 93 

 Styles 2 or 3 ; stamens 5 or 10 Saxifragacece, p. 58 

 Ovules only 1 in a cell. 

 Stamens 5 or 10. 



Trees or shrubs obatjeotjs, p.' 67 



Herbs. 



Fruit di-y, styles 2 . . . UmbeUiferce, p. 97 

 Fruit berry-like ; styles 2-5 Araliacem, p. 97 

 Stamens 2, 4 or 8. 



Style 1, stigma 1~, fruit a drupe Cornacece, p. 100 

 Style 1, stigma 2-4-lobed ; fruit dry 



Onagracece, p. 93 

 BB. Parts of the corolla more or less united. 



c. Stamens more numerous than lobes of corolla. 

 Ovary 1-celled 



Placenta 1, parietal Leguminosce, p. 68 



Placentae 2,-parietal -. . Fumariacew, p. 50 



Ovary 2-oelled ; cells 1-ovuled .... Polygalacem, p. 80 

 Ovary 5-many-celled. 



Stamens free from the corolla. 



Style 1 ; leaves simple Ericacem, p. 100 



Styles 5 ; leaves 3-foliale .... Oxalidacece, p. 78 

 Stamens attached to the corolla. 



Trees or shrubs ; style 1 .... Ericacea, p. WO 



Herbs ; filaments united in a tube . . Malvaceae, p. 89 

 cc. Stamens not more numerous than the corolla lobes. 



D. Stamens of the same number as the corolla lobes and 



opposite to them ; style 1 . . . . Primulaceos, p. 104 

 DO. Stamens alternate with the corolla lobes or fewer. 

 B. Ovary free from the calyx tube, 

 r. Corolla regular. 



G. Stamens as many as the corolla lobes. 



H. Ovaries more than 1, or if 1, deeply lobed. 

 Ovaries 2, or if 1, then 2-horned. 



Stamens united . Asclepiadacew, p. Ill 

 Stamens distinct . . Apocynacew, p. 110 

 Ovary 1, deeply 4-lobed. 



Leaves alternate . Boraginacece, p. 114 

 Leaves opposite . . . Labiatce, p. 117 

 HH. Ovary 1, not deeply lobed. 

 I. Ovary 1-celled. 



Seed 1, corolla dry Plantaginacem, p. 127 

 Seeds several-many. 

 Leaves entire and opposite. 



Oentianacece, p. 108 



