606 cm. LABiATiB. (J. D. Hooker.) 



*** Whorh many-fld., capitate, involucrate. Stamens 4. 



20. Obigabttm. 



**** Whorls few-fld. Stamens 4 21. Thymtts. 



***** Whorls axillary secund. Calyx 15-nerved. 



22. Htssopus. 



Subtribe 3. Meusse^. Calyx IS-nerved. Corolla 2-lipped. Stamens 

 2 or 4, ascending. 



Calyx 5-toothed 23. Miceombeia. 



Calyx 2-lipped ; coroUa-tnbe nearly straight .... 24. Caxamintha. 

 Calyx 2-lipped ; corolla-tabe recurved 25. Melissa. 



Tribe 3. Konardeae. Perfect stamens 2, ascending, parallel ; anther- 

 cells linear, solitary or separated by a filiform connective. 



Anther-cells equal, contignons, pendnloas from a small 



connective 26. Peeowbkia. 



Anther-oells eqnal, distant, pendulous from a long 



connective 27. Meeiahbea. 



Anther-cells very nneqaal or solitary, on a long connec- 

 tive 28. Saitia. 



Tribe 4. ITepetese. Perfect stamens 4 with the upper pair longest, 

 rarely 2, ascending or diverging ; anthers 2-eelled, cells at length diverging. 

 Ovary 4-partite. Nutlets dry, with a small basal areola. 



Calyx tubular, 5-toothed 29. Ukpeta. 



Calyx 2-lipped, upper lip much the largest 30. Deacocephalum. 



Calyx 2-lipped, lateral lobes of upper lip on the fece of 



the midlobe 31. IiAXLekantja. 



Tribe 5. Stacliydeae. Perfect stamens 4, ascending, lower pair 

 longest. Cali/x 5-10-nerved. Upper lip of corolla erect booded, lower spread- 

 ing 3-fid. Nutlets dry, basal areola small. 



Snbtribe 1. ScuiEiLAaiEiB. Calyx 2-lipped, month closed after flower- 

 ing. 



Fruiting calyx 2-partite; lips entire, upper with a 



broad plate .... 32. Sottteilaeia. 



Fruiting calyx tnhnlar, upper lip 3- lower 2-toothed . 33. Bkukella. 



Snbtribe 2. Maertibie^. Calyx tubular or campannlate. Stamens 

 included in the coroUa-tube 34. Maeettbium. 



Snbtribe 3. Lamee^. Calyx tubular or campannlate. Stamens exserted 

 from the corolla-tube. 



* Tipper lip of the corolla short, nearly fiat, glabrous or puhes cen 



Calyx subglobose; anther-cells divaricate; nutlets 



subglobose 35. CsANiOTOHE. 



Anther- cells of lower stamens parallel, transverse, of 



upper dimidiate . . 36. Aihsomeles. 



Anther-cells confluent; nutlets hispid or scaly ... 37. Achteospeemttm. 



Anther-cells confluent ; nutlets winged 38. Cokjtthounia. 



** Upper lip of the corolla hooded, villous. 

 Calyx 5-toothed ; antber-eells divergent ; nntlets obtuse 39. Stachts. 



