THE ORCHID REVIEW. 199 
ONCIDIUM AMPLIATUM CITRINUM. 
THE typical form of Oncidium ampliatum, like that of many other species, 
has some brown markings at the base of the petals and around the crest of the 
lip, but now a variety has appeared with Messrs. Hugh Low & Co., from 
which these are entirely absent, leaving the flower clear citron yellow, which 
gives it a very distinct appearance. . In all other respects it agrees with the 
well-known type. It was exhibited at the recent Temple Show, and again 
at the Drill Hall,on June 13th. The absence of the characteristic markings 
is a rare occurrence with many Orchids, and we do not remember to have 
met with in it before in this species. 
| Aer ea 
THE STAND HALL COLLECTION. 
WE have again had the pleasure of inspecting this interesting collection, of 
which an account was given in our second volume (pp. 291-293), and now ~ 
offer a few supplementary notes. We had often wondered what had 
become of the remarkable seedlings derived from Epidendrum X 
O’Brienianum crossed with the pollen of Dendrobium crystallinum, and 
were gratified to find some of then in flower on this occasion, but, alas! 
they are practically reproductions of the mother plant, not quite identical 
with it, perhaps, and varying slightly between themselves, but without any 
recognizable trace of the influence of the pollen parent. This adds another 
to the series of seemingly inexplicable facts in connection with the 
hybridization of Orchids, and we should like to see the experiment carefully 
repeated, or varied by using pollen from some other Dendrobium, the 
reverse cross being also tried. We may add that some of the plants were 
thrown away after the flowers appeared. 
Dendrobiums generally are extremely well cultivated here, and a fine lot 
of D. Phalznopsis in one house possess an amount of vigour seldom met 
with. The house is a lean-to, with a south aspect, with suitable provisions 
for shading, but the top ventilators are scarcely ever opened, to which 
Mr. Statter attributes much of his success. The plants are grown in pot- 
shaped baskets, suspended from the roof, and sparingly watered, but the air 
is kept as moist as possible by damping down. The compost used is fibrous 
peat only. We noticed a lot of healthy cucumber plants festooned at the 
back of the house, which is next to a vinery, and we have no doubt that the 
manurial elements employed in their culture benefit the Dendrobiums, 
through the ammonia escaping into the air—in fact, it was perceptible on 
entering the house. Under these conditions, the root-action is superb, the 
roots hanging down below the baskets in profusion, while the pseudobulb 
