LAB I AT J'.. 



231 



Calyx vory oblique, suboroct. 2- 

 lipped ; upper lip largo, ontiro in- 

 flexed and closing the mouth : 

 lower lip truncate, obscurely 

 toothed ..... 



Attachment of nutlets slightly oblique to 

 the outer side, the nutlets also dorsally 

 attached to the lobes of the disk 

 and leaving a large areola on separa- 

 tion ; calyx-lobes subequal, 13-1 T- 

 nerved ; corolla 'J-lippod. lobes all flat 

 and spreading, stamens included in the 

 tube ....... 



Stamens erect spreading or ascending s — 



Stamens 4, all perfect : — 



Corolla-lobes 4, flat, sub-equal and 

 similar ; stamens subequal, anther- 

 cells confluent : — 



Calyx 5-toothed. teeth equal, stamens 

 exserted, filaments usually 



bearded : — 



Lower lobe of corolla flit, spread- 

 ing ; whorls in glomerate or in 

 solitary interrupted spikes :— 



Lower lobe of corolla like the 

 others ; whorls in slender dense 

 continuous spikes . . • 



Calyx 5-partite ; segments plumose 

 in flower, pappose in fruit ; whorls 

 in slender cylindric spikes ; stamens 

 of female flowers included, filaments 

 naked ...... 



Corolla 2-lipped, stamens didynamous :— 



Anterior pair of stamens the longer : — 



Calyx 13-nerved, anthers 2-celled : — 



Calyx equally 5-toothed 



Calyx distinctly 2-lipped . 



Calyx 5-10-nerved : — 



Upper lip of corolla short, nearly 

 flat ; anthers of upper stamens 

 2-celled, of lower 1-celled, the 

 cells transverse and parallel 



6. Anisochilus. 



7. Lavandula. 



p. pogostemon. 

 9. Dysophylla. 



10. COLEBROOKIA. 



11. MlCEOMEBIA. 



12. Calamintha. 



13. AN180MBL1S. 



