MaieriaU for a Flora of the Malayan Peninsula. 



Filament short broad. Staminodes broader 

 than petals. 

 Anther dorsifixed versatile 

 Anther cells on a broad thin connective, 



staminodes not broader than petals 

 Anther thick terminal ... 

 Spikes radical cone-like. 



Staminodes not broader than corolla lobes 

 Staminodes smaller. Anther with long curved 



arms 

 Staminodes small, absent, or adnate to lip. 

 Stamen with a thin flat petaloid filament 

 Filament thick, scapes radical. 



Anther with a long curved beak. Lip 3 lobed 

 Anther with two curved arms. Lip broad ... 

 Anther with no arms or crest.. Lip narrow ... 



Spike lateral from a leafy stem 



Panicle lax horizontal creeping from the 



rhizome 

 Panicle compact erect or pendulous from the 



rhizome ... ... ... 



Panicle terminal on a leafy stem 



1. Globba, L. 



4. Camptandra. 



5.~~Kaempferia. 



6. Gastrochilus 



7. Curcuma. 



8. Conamomum. 



9. Costus. 



10. Zingiber. 



11. Amomum. 



12. Hornstedtia. 



13. Plagiostachys. 



14. Elettariopsis. 



15. Geostachys. 



16. Alpinia. 



Slender herbs with a short rhizome. Leaves ovate or lanceolate, 

 sheathing, with a short ligule. Inflorescence terminal panicled, lax. 

 Flowers small yellow white or violet. Calyx tubular 3 toothed regular 

 or irregular. Corolla tube longer, lobes boat shaped reflexed, staminodes 

 similar. Lip base adnate by its edges to the stamen forming a tube, 

 limb narrow deflexed bilobed or entire. Stamen filament much longer 

 Blender. Anther small, connective prolonged into a simple margin or 

 with 2 or 4 spurs. Style longer, stigma very small cup-shaped. 

 Ovary 1 celled, placentas 3 parietal. Capsule globose irregularly delus- 

 cent, seeds small, with a white aril. 



Species about 30. Indian, Chinese and Malayan. 



§ 1. APLANTHEBA. Anthers spurless. Flowers 

 yellow. Lip linear entire ... 

 Lip short bilobed ... 



§ 2. Cebatantiieba. Anther 2 spurred. 

 Flowers yellow. Panicle slender. 



Anther spurs narrow subulate from the 

 lower part of the anther, 



1. G. Wallichii. 



2. G. uliginosa. 



