Plate XV. 



Outlines of labellum and staminodes in the genus Zingiber. 



All figures drawn from fresh flowers, explained and dried. N.s. 



Fig. 1, 2. Z. officinale. 



3. Z. Zerumbet. 



4. Z. aromaticiim, 



5. Z. aromaticum, var. sylvestris. 



6. Z. amaricans, var. obscura. 



• ,7, Z. Zerumbet, var. from Djogdjakarta. , 



'; • 9. Z. amaricans. 



10. Z. amaricans, var. major. 



11. Z. amaricans, flos bipetalus. 

 , 1,2. Z. Ottensii. 



\3: Z. Cassumunar. 



14. Z. gramineiim. 



15. Z. leptortachyum. 



16. Z. macradenium. 



17. " Z odoriferum. 



18. Z. odoriferum, var. angusiifolia. 



19. Z. acuminatum. 



20. Z. neolectum. 



