an ample supply of water at its roots ; and where it can be 

 avoided, little should be allowed to fall on its leaves, other- 

 wise the young shoots will damp off. It enjoys a humid 

 atmosphere and a high temperature ; but as the leaves are 

 very delicate, they will soon become scorched if shading is 

 not carefully attended to. In winter little water will be re- 

 quired ; still it is necessary to keep the soil damp enough to 

 preserve the bulbs from shrivelling. This is one of the most 

 difficult of Orchidaceous plants to grow well. 



C. purpurea (Lindl. Gen. & Sp. Orch. no. 2) ; scapo erecto 

 foliis latis oblongis petiolatis acuminatis supra pilosis 

 subtus tomentosis longiore, racemis laxis multifloris, la- 

 belli trilobi lobis lateralibus nanis rotundatis patentibus 

 intermedio angusto cuneato divergenti-bilobo, calcare 

 ovario vix breviore. 



C. versicolor (Lindl. Sert. Orch. t. 42) ; foliis oblongo-lanceo- 

 latis erectis concavis 7-9-nerviis utrinque glaberrimis 

 scapo apice pubescente brevioribus, racemo denso pyra- 

 midato, labelli columnae brevi accreti trilobi lobis late- 

 ralibus ovatis nanis intermedio cuneato bilobo multo 

 majore basi trituberculato secus lineam mediam verru- 

 coso, calcare glabro ovarii pufcescentis longitudine. 



