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 columnz brevi accreti trilobi lobis late- 
ralibus ovatis nanis intermedio cuneato bilobo multó 
majore basi trituberculato secus lineam mediam verru- 
coso, calcare glabro ovarii pubescentis longitudine. . 
