148 THE ORCHID REVIEW. 
from C. villosum and C. hirsutissimum. It would appear to be a fine 
form of C. x Germinyanum. It is described under the name of C. villosum 
violaceum, which we venture to amend.—F. Desbois in Gardeners’ Chronicle, 
Feb. 18th, p. 195. 
DENDROBIUM X RUBENS. 
A very handsome hybrid, derived from D. x Leechianum ¢ and D. 
nobile nobilius 7, which therefore contains three-fourths blood of D. nobile. 
It is described from the collection of Mr. J. Cypher, Queen’s Road Nursery, 
Cheltenham. It is a free- -grower, and very floriferous, and combines the 
characters of its two parents.— O’Brien in Gardeners’ Chrome Feb. 25th, 
p. 226. : 
CALENDAR OF OPERATIONS FOR MAY. 
By W. H. Wuire, Burford, Dorking. 
Ir is a great pleasure and satisfaction to. look through a collection of 
Orchids at the present time, and to notice how quickly these plants have 
responded to the increased sun-heat which they have experienced during 
March and April. The majority of the plants in each division will now be 
growing and rooting freely, and should receive careful treatment as regards 
watering. There can be no doubt that rain-water is the best. and most 
natural, particularly for syringing purposes. Where reservoir water . is used 
it generally leaves a white sediment on the leaves and bulbs, which not only 
stops up the pores and prevents the plants from obtaining atmospheri¢ 
nourishment, but also appears: very unsightly. It is therefore of great 
importancethat every house should be furnished with a tank for the storas® 
of latge quantities of rain-water. During the summer months, W when the 
supply is uncertain, it is not always advisable to rely wholly upon the i9 
quantity. Here we have a large tank outside, made expressly for Gere 
rain-water from the dwelling-house. The water is easily pumped into t j 
tanks through a large garden-hose, and in times of drought I have foun 
this extra supply exceedingly useful. It is not necessary th 
pipes ‘should | be laid through all the tanks in Orchid houses; but 1 “pt 
in the East Indian house be provided with a three-inch hot-water pipe’ 
the purpose of incr easing the temperature of the water, with a valve ow the 
the tank to properly regulate it, this will be sufficient. I do ‘not i 
water to be heated, with the view of increasing humidity 1 in the a fot 
as I am fully convinced that this is aalcauet to the plane but ay 
watering ‘and syringing purposes. 
side 
