CHAP, xv VILLA GARDENING 231 



house the change of temperature should be gradual. Alter the 

 change of seiisons, the one merging into the other slowly, not 

 abruptly ; thus the lowest point named in the night temperature 

 will be applicable to the season when the thermometer falls to a 

 low point outside in the open air ; but as the days lengthen and 

 the nights become warmer in spring, the night temperature in the 

 Orchid -house -will gradually ascend till it merges into summer 

 maximiuu, the same rule applying to the day temperature. 



List of Cool Orchids. — Aerides japonicum, Barkeria elegans, 



B. Lindleyana, Cattleya marginata, Ccelogyne cristata, Cyprii)edium 

 insigne, C. villosum, Cymbidium eburneum, Dendrobium japonicum, 

 D. speciosum, Disa grandiflora, Epidendrum biflorum, E. Cooper- 

 ianum, E. macrochilum, E. macrochilum albiun, E. macrochilum 

 roseum, E. tloribundum, E. nutans, E. paniculatimi, E. chry- 

 sostomum, Masdevallia amabilis, M. caudata, M. coccinea, M. 

 Peristeria, M. rosea, M. ignea, M. maculata, M. nycterina, M. 

 Veitchiana, M. triangularis, Maxillaria aromatica, M. grandiflora, 

 M. cruenta, M. picta, Miltonia Clowesi, Hoemaria macidata, 

 Habenaria flexuosa, Pleione humilis, Pleurothallis cordata, Odonto- 

 glossum crispum, 0. c. Alexandrse, 0. blandum, 0. cirrhosum, 0. 

 constrictum, 0. cordatum, 0. cristatum, 0. grande, 0. gloriosum, 

 0. densiflorum, 0. Lindleyanum, 0. hystrix, 0. maculatum, 0. 

 nebulosum, 0. Pescatorei, 0. radiatum, 0. Ptossi majus, 0. 

 tripudians, 0. triumphans, 0. Uro-Skiuneri, Oncidium aurosum, 

 0. Barkeri, 0. cucullatum, 0. ausiferum, 0. Infolium majus, 0. 

 heberegiossum, 0. pictum, 0. crispum, 0. incurvum, 0. rupestre, 

 0. superbum. 



The above list might be much lengthened if it were desirable or 

 necessary, for numerous Orchids will thrive in the coolest green- 

 house. To go through the various classes of Orchids would be 

 beside my present purpose. I will, however, first name a few 

 species that may be grown successfully in a cool stove — say with 

 a night temperature in winter of 55" to GO' — with the ordinary 

 mixed collection of stove plants. Calanthe vestita and varieties, 

 Cffilogync cristata, 0. speciosa, C. Parishi, Cypripedium caudatum, 



C. insigne and varieties, C. venustum, Dendrobium nobile, D. 

 chrysanthum, D. cucullatum, D. deusitiorum, Phaius grandifoliiis, 

 Stanhopea grandiflora, S. oculata, Zygopetalum jMackayi and 

 varieties, Saccolabium Blumei, Oncidium flexuosum, 0. Papilio, 0. 

 luridum, 0. varicosum, Lselia anceps, and Lycaste Skinneri. 



