A SYNOPSIS OF THE GENUS ^CHMKA. 181 



Section III. Chevalliera {Gaudich.) Inflorescence a multi- 

 farious simple spike. Ovary compressed, nearly flattened on the 

 side nearest the rachis of the spike. 



Flower-bracts toothed. 11. Veitchii. 



Flower-bracts not toothed. 

 Head of flowers globose. 12. sphmrocejjhala. 



Head of flowers oblong. 

 13. ornata. 14. MaricB-regincE . 



Section IV. Pironneava (Gaudich.) Spikes numerous, multi- 

 farious, panicled. Ovary as in Chevalliera. 



Calyx including ovary longer than the flower-bract. 

 15. angusta. 16. Wrightii. 



Calyx including the ovary not longer than the flower-bract. 

 17. glomerata. 18. distans. 19. lingidata. 20. polycephala. 



Section V. Eu^chmea. Inflorescence a lax panicle of multi- 

 farious racemes, with a lateral peduncle. Petals three to four times 

 as long as the sepals, distinctly twisting after flowering. Ovary 

 terete. 



The only species . . ^1. paniculata. 



Section VI. Hohenbergia (Schultes fil.) Inflorescence panicled, 

 multifarious. Peduncle from the centre of the rosette of leaves. 

 Petals generally not more than twice as long as the sepals, 

 scarcely twisted. Ovary terete = Hojjlojjhytum, Beer. 



Flowers in large tripinnate panicles. 



Flower-bracts obsolete. 22. mexicana. 



Flower-bracts minute. 23. spectabilis. M. cymoso-panicuJata. 



Flower-bracts one-sixth to one-third inch long. 



25. rcimosa. 26. pyramidaUs. 27. platynema. 



Flowers in a small tripinnate panicle. 28. capitata. 



Flowers m an ample bipinnate panicle with racemose branches. 



29. parviflora. 



Flowers in an ample lax bipinnate panicle with spicate branches. 



30. laxiflora. 31. odora. 32. patentissima . 



Flowers in a small dense oblong-deltoid bipinnate panicle. 



Flowers pedicellate on the secondary branches. 33. canilescens. 



Flowers sessile on the secondary branches. 



Flowers ten to fifteen to the lower branches. 



34. Melinonii. 85. Ciuningii. 



Flowers four to eight to the lower branches. 



36. .siihinermis. 37. cadestis. 88. suaveolens. 



39. Jiorihunda. 40. regidaris. 



Flowers in a cylindrical panicle with short cj'^mose branches. 



41. siiicata. 42. Mertensii, 43. ijaniciiUgera. 44. setigera. 



