Cochlioda.—A compact-growing genus to be grown with the Odontoglossums. C. Noezliana, scarlet, has been a fine species in the hands of the hybridiser, and in the future may give us "Scarlet Odontoglossums." C. vulcanica has deep rose-coloured flowers.
Cœlia.—There are several species of Cœlia, and they require to be grown in the intermediate house.
Cœlogyne.—A very large genus of two distinct sections, that represented by C. cristata being evergreen; the Pleione or Indian crocus section deciduous, and requiring to be treated as terrestrial Orchids, while the larger section are epiphytal. The epiphytal sections are warm and intermediate house plants. The Pleiones should be grown in a cool house, and rested quite dry after the leaves fade and until growth again commences.
PLATE VII
ONCIDIUM MARSHALLIANUM
Comparettia.—These are small-growing epiphytes. Grow in small baskets or hanging pans in the intermediate 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 recorded in the Gardeners' Chronicle (July 17, 1897, p. 31).