82 PRESENT-DAY GARDENING 
fleshy, whitish, or yellow, and spotted with purple or 
brown. They should be grown in baskets suspended in 
the intermediate house. A. Barkeri, A. densa, and A. Hum- 
boldtii are free-growing species. 
Acropera. See Gongora. 
Ada.—Cool-house genus from Colombia. Leafy ever- 
green plants with racemes of orange-scarlet flowers. Ada 
aurantiaca is almost the sole representative of the genus 
in gardens, and should be grown even in the smallest 
collections. 
Aéranthus, See Angrzcum. 
*Aérides.—A large genus of evergreen Orchids with 
distichously arranged, leathery, green leaves, the stem pro- 
ducing air-roots freely. Natives of India, the Malay 
Archipelago, and other parts of that region, extending 
to Japan. 
All the species of Aérides may be grown in pots, 
crocked from one-half to two-thirds of the way up, the 
old stems of the plants, when long, being placed in the pots 
before the crocks are filled in. The surface should be 
of good living Sphagnum-moss, and the plants should be 
liberally watered from the end of February or beginning of 
March until autumn, when the supply of water should be 
restricted according to the condition of growth of the 
plants. Those which have finished their growth and are 
not showing new leaves in the centre should be given the 
least supply, but it is not advisable to dry any off com- 
pletely, unless for some reason they have to be kept 
comparatively cool throughout the winter, when they are 
safest if kept tolerably dry. The smaller species may be 
grown in baskets with advantage when convenient—indeed, 
