12 



KEY AND FLOKA 



* * Ovary 2-4-c6llecl. 



t Cells each 1-seeded. 



Ovary deeply 4-lobed , 

 Ovary not deeply lobed. 

 Stamens 2 or 4 . . . . 



Stamens 8 . . . 



1 1 Cells each 2-several-seeded. 



Corolla lobes imbricate in the bud 

 Corolla lobes convolute in the bud 

 (c) Ovary inferior. 



Flowers in an involucrate head . 

 Flowers not in heads. 

 Stamens 3. 

 Leaves opposite 



Leaves alternate . . . . 



Stamens 4-5. 

 Leaves alternate . . . . 



Leaves opposite or whorled . 



88. Mint . . 



87. Verbena . 

 53. Polygala . 



90. Figwort 

 93. Acanthus . 



100. Composite 



97. Valerian . 



98. Gourd . 



99. Campanula 

 95. Madder 



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235 

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