GENERAL KEY TO THE ORDERS. 



PACB 



\\ Ovary inferior. 



Anthers distinct. 



Stamens as many as the corolla-lobes and alternate with them (one fewer 

 in IJnnaea of the Caprifoliaceae), or twice as many; ovary compound, 

 with i ovule or more in eacli cavity ; leaves opposite or verticillate. 



Order 7. Rubiales 860 



Stamens mostly fewer than the corolla-lobes: ovary 1 -celled with 1 pen- 

 dulous ovule, or 3-celled with 2 of the cavities without ovules. 



Order 8. Valerianales. 877 

 Anthers united (except in Campanula and Specularia of the Campanulaceae, 

 111 Ambrosiaceae and in Kuhnia of the Compositae). 



Order 9. Campanulales. 881 



