General Key to the Families 



Stamens in one series. 

 ttStamens alternate with the corolla-lobes 

 and as many in number or fewer (species 

 of Fraxinus and Forestiera in the Olive 

 Family have no corolla). 

 Ovaries 2; stamens mostly joined only to the base 

 of the corolla. 

 Stamens fewer than the corolla-lobes, usually 

 only 2, the corolla sometimes wanting; styles 

 short or none. 

 Stamens as many as the corolla-lobes; styles 

 and stigmas united. 

 Ovary 1, compound; stamens mostly joined to the 

 corolla-tube at or above the middle. 

 Fruit drupaceous, or of 4 nutlets or achenes; 

 seeds usually solitary. 

 Corolla regular; stamens 5; styles separate 



or united by pairs. 

 Corolla irregular; stamens 4; styles distinct. 

 Fruit a berry or capsule; seeds numerous. 

 Corolla regular; stamens 5. 

 Corolla irregular; fertile stamens 4, or fewer. 

 Seeds not winged; placentae axile. 

 Seeds broadly winged; placenta parietal. 

 2. Ovary inferior. 

 Leaves with stipules; foliage usually blackening 



in drying. 

 Leaves without stipules, or with stipules adnate 

 to the petiole; foliage usually not blackening in 

 drying. 



Storax Family. 



Olive Family. 

 Dogbane Family. 



Ehketia Family. 

 Vervain Family. 



Potato Family. 



PAGE 



791 



Madder Family. 



Honeysuckle Family. 



794 

 816 



818 

 824 



828 



FiGWORT Family. 830 



Trumpet Creeper Family. 832 



840 



848 



