GENERA AND SPECIES 91 



house. C. falcata, red, C. macroplectron, pale rose ; spotted ; 

 and C. speciosa, scarlet, are the best species. 



Colax A small genus of cool-house Orchids allied 

 to Lycaste, and requiring similar treatment. C. jugosus has 

 been crossed with Zygopetalums with good results. 



Coryanthes. These are similar in habit to Stanhopea. 

 The plants should be grown in baskets suspended in the 

 intermediate house. The structure of the large, fleshy 

 flowers is most remarkable, and some interesting particulars 

 relating to their fertilisation by insect aid have been re- 

 corded in the Gardeners' Chronicle (July 17, 1897, p. 31). 



Cycnoches. Of similar habit and requirements to 

 Catasetum. The plants are best grown in baskets and sus- 

 pended. They should be rested cool and dry with the 

 deciduous Dendrobiums. C. chlorochilon (Swan Orchid), C. 

 Egertonianum, C. Loddigesii, C. maculatum, C. peruvianum, 

 and C. pentadactylon are fine species. 



Cymbidium These are showy, large-growing Orchids 

 for the intermediate house or warm conservatory. Pot 

 the plants in equal proportions of fibrous loam, peat, and 

 Sphagnum-moss. C. giganteum, C. Lowianum, C. grandi- 

 florum, and C. Tracyanum are the most commonly grown. 

 C. eburneum, C. Mastersii, C. insigne, and C. erythrostylum 

 are fine, white species, the latter two with rose markings on 

 the lip. There are numerous hybrids. C. Lowio-eburnewn, 

 a cross from C. Lowianum, and C. eburneum is illustrated in 

 Plate VI. 



Cynorchis. Terrestrial Orchids from Tropical Africa 

 and Madagascar, requiring to be grown in the warm house 

 in moist and shady conditions. The flowers are generally 

 of rose colour. 



