Dunn — A Key to the Labiatae i 



calyx teeth blunt 

 Corolla tube not more than twice as long a 

 the calyx 



7. striates. 

 19. 



19. Leaves acute or acuminate . 

 Leaves blunt 



15. Henryi. 



20. Inflorescence woolly 

 Inflorescence not woolly 



. *.«*-«* 



21. Leaves grey-pubescent beneath 

 Leaves nearly glabrous beneath 



. 17. Cavaleriei. 

 18. glaucocalyx. 



22. Corolla widely gibbous at base 



Corolla cylindric at base or nearly so 



23. 



23. Corolla 5-6 mm. long 



Corolla 7-15 mm. long ; leaves glabrous 



19. Coetsa. 

 24. 



24. Leaves obtuse or acuminate ; flowers ir 

 narrow panicles or in axillary cymes 

 Leaves cuspidate ; flowers in spreading 



25. 



25. Leaves shortly acuminate . 

 Leaves obtuse 



27. 



26. Corolla 7 mm. long . 

 Corolla 1.1 cm. long . 



20. Rosthornii. 

 21. ricinispermus. 



27. Corolla 7-9 mm. long 

 Corolla 1. 2-1 .4 cm. long 



22. adenanthus. 

 . 23. irroratns* 



28. Leaves lanceolate, acute, cuneate at th« 

 Leaves ovate, abruptly acuminate at tht 



29. 



29. Fruiting calyx teeth short, triangular 

 Fruiting calyx teeth long, acute 



18. glaucocalyx. 

 24. nervosus. 



30. Corolla widely gibbous at the base . 

 Corolla cylindric at base or nearly so 



31. 

 . 46. 



31. Flowers 1.2-1.5 cm. long 

 Flowers 5-10 mm. long 



32. 

 34- 



32. Leaves linear-oblong 



4. angustifolius. 

 33- 



33. Flowers in axillary cymes ; leaves obtuse 

 Flowers in loose panicles ; leaves acute 



►. 23. irroratus. 

 25. Forrestii. 



34. Inflorescence woolly or tomentose . 

 Inflorescence glabrous or pubescent 



. 16. eriocalyx. 

 35- 



35. Flowers in racemes . . . 12. t 



xcisus (var. racemosus). 



Flowers in panicles or cymes 



: 



