THE LABIATAE OF CHINA. 



9. Fruiting calyx 3-4 times as long as broad 

 Fruiting calyx twice as long as broad 

 10. Calyx lobes shut together in fruit . 

 Calyx campanulate in fruit . 



13. Corolla gibbous at base or distinctly 2-lipped 

 or inflorescence loose . 

 Corolla tube cylindric, hardly 2-lipped 

 florescence compact 



8. Plectranthus. 

 17. Hancea. 



20. Mentha. 

 21. Lycopus. 

 \. Colebrookia. 



