180 THE. ORCHID REVIEW. (JUNE, 1023. 
when in a root-bound condition than when afforded a liberal rooting space, 
but plants that are showing signs of deterioration should be removed from 
their receptacles and potted up afresh, affording them only medium root 
room. Place them in an ordinary plant, stove, or Dendrobium house, 
where they may remain during the summer, and when the season’s growth 
is completed water should be withheld gradually, and the plants rested 
during the winter months in a warm greenhouse. Dendrobiums of the 
deciduous and semi-deciduous section are rooting freely. The plants 
should be more liberally supplied with water at the roots, and supports 
should be afforded the young growths by looping them to the older 
pseudobulbs, or by tying them to neat sticks. If any of the plants are 
greatly in need of more rooting space now is a suitable time to remove 
them into larger pots without unduly disturbing the roots or compost. 
OponTOGLossuM cITROsMuM.—As plants of this species pass out of 
flower, any necessary repotting may be given attention. If the compost 
they are growing in is found to be at all decomposed they should be taken 
out of their pots, and all the old materials.shaken out, the dead roots cut 
away, and be potted upafresh in pots or pans of not too large dimensions; 
perfect drainage aud firm potting are essential. Those growing in 
receptacles of sufficient size for the present season’s growth, and with the 
compost in good condition, should have a little of it removed from between 
the roots on the surface and replaced by new. The plants should be 
afforded a light position in an intermediate temperature, and watered 
sparingly until the new roots have become active; the compost should be 
kept moist by overhead sprayings. After the season’s growth is finished 
they should be given along season of rest under drier and cooler conditions. 
PLATYCLINIS FILIFORMIS.—This pretty species should be repotted after 
passing out of flower, and as soon as new roots are observed to be pushing 
from the partly developed growths. They are best grown in pans and 
suspended from the roof in a shady position, in an intermediate 
temperature. When they have rooted freely into the new compost liberal 
supplies of water should be given, and the plants sprayed frequently over- 
head and on the undersides of the leaves all through their growing period 
as a means of warding off attacks of red-spider. P. uncata and P. glumacea 
should be afforded similar treatment during their growing season. Lelia 
anceps in its many varieties are growing freely, and should be given liberal 
treatment in every respect. They should not be densely shaded; the 
blinds may be lowered over them in the morning when the sun is so bright 
as to cause the foliage to become warm, and drawn up again early in the 
afternoon. The house should be ventilated freely during the hottest part 
ofthe day, but closed sufficiently early for the temperature to rise several 
degrees, when the plants will be benefited by being sprayed overhead. 
