GENERA AND SPECIES 107 



satisfactory condition of many of them in gardens. Each 

 section should be watched, and, when growth is completed, 

 a change should be given to a cool, intermediate house 

 for a couple of months. Aerides, Vandas, and Saccolabiums 

 suffer most from being kept too hot and close in winter. 

 After spring opens the amount of heat and moisture 

 should be gradually increased. Directly they have flowered, 

 the tall plants which have lost their bottom leaves 

 should be lowered in the pots or baskets by being cut 

 off at the base. Dwarf -growing species should be brought 

 well up to the light. V. ccerulea grows well under the 

 most dissimilar conditions, and with it, as with many other 

 Orchids, there is more in finding a suitable place than in 

 growing the plant. All require to be potted or basketed 

 in Sphagnum-moss. Some growers add a sprinkling of 

 leaves. The V. teres section may be planted in Sphagnum- 

 moss in a warm corner of the house, or against the end 

 of the house. If grown in pots, three or four should be 

 potted together and trained to a stout stick or teak rod. 



Zygopetalum. Under Zygopetalum, several distinct 

 sub-genera are included. The largest-growing and showiest 

 species include Z. Mackayi, Z. crinitum, and other related 

 species. These should be potted in peat, Sphagnum-moss, 

 and loam fibre in equal proportions, with a sprinkling of 

 leaves, and fine broken crocks added. During the grow- 

 ing season occasional waterings with weak, liquid manure 

 should be given ; and, after flowering, a rest with restricted 

 water supply. Those that need repotting should be attended 

 to before growth begins, but they will remain satisfactory 

 for years in the same pots if carefully treated. 



There are many hybrids, especially of Z. maxillare 9 



