— 29 — 



a^. Bracts acutely apiculate; lip and staminodia long and narrow: 



C. meraukensis. 



b^. Lip and staminodia very broad. 



Flower nearly as long as broad when explained: C. latiflora. 

 C. Flower unknown. Habit of C. petiolata-. C. sumatrana. 



11. Rhizomes elongated, branched. Leaves narrowed at the base. 

 Flowers white or pale-yellow of pale-orange. Anthers with 

 solid spurs, which are nearly as long or half as long as the 

 cells, with a fleshy base at the back wall of the cells and 

 with a knot on the foremost top of the cells. Staminodia fol- 

 ded longitudinally. Ligula-lobes not auriculate. 

 A. Inflorescence central — Mesant/ia: 



a. Bracts all lanceolate, the outmost somewhat broader; more than half 

 free, all light-green or the bracts of the coma white, sometimes with 

 minute brown spots near the top. Bracteoles 30-35 mm, long, corolla- 

 tube very long. Lig. proportionally small. Flowers white : C domestica. 



b. Floral-bracts, when loosed from the axis, obovate or elliptical, adnate 

 to the half or more. 



a'. Bracts of the coma white or light-green. 



a^. Flowers slender, protruded ten to twenty mm. beyond the bract; 

 top of the lip curved outwards." Flowers white with a yellow 

 middle-band of the lip. Bracts of the coma white at the base, 

 often brown-spotted and light-green striped at the top. 

 Costa of the leaf brown above: C. purpurascens. 



b^. Flowers short and broad, not protruded beyond the bract; middle- 

 part of the lip not protruded. 



FJower cream-white. Petals light-pink middle-band of the lip 

 dark-yellow. Costa of the leaf not brown; leaf darkgreen : 



C. viridiflora. 



b'. Bracts of the coma pink or dark-purple. 



Bracts of the coma dark-purple, floral-bracts purple at the top. 

 Floral-bracts very broad; some of the lower ones adnate more 

 than half way, all broad-ovate, very obtuse, somewhat narrowed 

 at the top. Flowers protruded ten mm. or more beyond the bracts, 

 orange yellow with pink petals. Costa of the leaf brown above, 

 rhizome orange-coloured: C. colorata. 



b^. Bracts of the coma light-pink or violet, lower part white ; floral- 

 bracts mostly quite green; not adnate beyond the middle, 

 a^. Mid-rib quite brown-coloured above, at least in the oldest leaves, 

 parenchyma green. Flowers slender ; staminodia blunt-elliptical, 

 rhizome brightorange-yellow : C. euchroma. 



b^. Leaves without a brown mid-rib. 



