NovEMBER, 1916.] THE ORCHID REVIEW. 269 
varies to such an extent that it is impossible to lay down any hard and fast 
rule on the subject. 
MASDEVALLIAS.—Those plants that were potted at the end of August or 
early in September will now be rooting freely, and making new growth, but 
they must still be watered sparingly, as should the compost become in a 
saturated condition, the plants will lose their roots, and in many cases their 
leaves also, and the plants will decline in health. M. tovarensis, whilst 
developing its lovely pure white flowers, enjoys a light position in a cool 
Intermediate house, where the extra heat is of great assistance. If the 
plants are still in the Cool house they should be removed at once. 
OponToGLossuMs.—Plants of O. Uroskinneri, O. bictoniense, and 
others that are growing fast and pushing forth roots from the base of their 
growths, may be repotted, if necessary. These plants have thick fleshy 
roots, therefore the material should be used in a rough condition, and the 
plants not potted too firmly. They delight in slightly warmer conditions 
than Odontoglossums of the crispum section. O. citrosmum, having now 
finished up its pseudobulbs, will only require sufficient water at the roots 
to prevent shrivelling, as to flower it satisfactorily this plant must have a 
long rest. O. grande, O. Insleayi, O. Schillerianum, O. Rossii, and oO. 
Cervantesii, although growing quite satisfactorily during the summer 
months in the Cool house, winter better in the Intermediate house, as the 
cool moist atmosphere of the former is not to their liking. 
ANcR&cUMs.—Angrecum sesquipedale is the best known species of 
this interesting genus. There are two varieties of this singular Orchid, one 
flowering in the autumn, the other in the spring. They require the 
warmth of the East Indian house all the year round, and a reasonable 
amount of atmospheric moisture should be retained about them at all 
seasons. Water should be given whenever the sphagnum moss in which 
they are grown becomes white for want of moisture, as continued drought 
is very injurious. These conditions answer the requirements of any of the 
large-growing Angrecums, as A. eburneum, A. Veitchii (of which there are 
also two varieties) and others of this class. The species of the smaller- 
flowered section, which bloom during winter and early spring, require the 
same conditions as regards heat and moisture. The miniature kinds are 
best suspended within a reasonable distance of the roof glass, and they 
succeed in shallow pans or baskets, in a compost of sphagnum moss. 
Careful watering is necessary at all times, and a close observation must be 
kept on the plants, as they are partial to particular positions and environ- 
ment. A. Sanderianum succeeds best grown down on the stage in a fairly 
humid position. 
PHAL#Nopsis should have water app 
become dry, as if allowed to remain in this con 
lied to the roots, whenever they 
dition for any length of time 
