2 
THE ORCHID WORLD. 
[October, igi2. 
A Useful Catalogue. — Nothing is more 
conducive to the advancement of Orchid 
culture than properly constructed houses. The 
new illustrated catalogue issued by Messrs. 
Wm. Duncan Tucker and Sons, Ltd , is full of 
interesting photographic reproductions oi all 
that appertains to horticultural buildings. 
Consisting of 120 pages, it forms a book 
worthy of every Orchid grower's careful 
perusal, for many encouraging suggestions are 
obtainable from the illustrations. 
The late ] . S. Bergheim. 
Obituary. — We much regret to record the 
death of Mr. J. S. Bergheim, of Belsize Court, 
Hampstead, who died on the loth ult., in his 
70th year, the result of a motor-car accident. 
Mr. Bergheim was a keen naturalist, being 
especially interested in the various scientific 
points of plant life, and was never more happy 
than when discussing with members of his 
large circle of friends one of the many sub- 
jects he had studied. Almost every year he 
made a journey to some distant country, and 
his return never failed to bring many addi- 
tions to the collection of curiosities at Belsize 
Park. His Orchid houses contained numerous 
specimens, mostly of botanical and scientific 
interest, which he had from time to time col- 
lected. At the Royal Horticultural Society he 
often exhibited specimens, and as recently as 
August 27th he received an Award of Merit 
for Angraecum O'Brienianum. The scientific 
aspect of plant reproduction continually en- 
gaged his attention, and almost to his last day 
he endeavoured to discover the use of the long 
tail-like gland attached to the pollen masses 
of Ornithocephalus grandiflorus. Mr. Berg- 
heim was a high example of one of Nature's 
apt students, and he will be sadly missed by 
the many whom he oftentimes entertained. 
?;| -j^ m 
Odontoglossum cristatu^l— -A native 
of Ecuador, this species is but rarely seen in 
cultivation. The small flowers, seldom more 
than two and a half inches across and of a 
light yellow colour almost covered with dark 
brown blotches, have little to recommend them 
for decorative effect. Nearly all the small- 
flowered species have one or two prominent 
specific characters which no amount of hybridi- 
sation is, apparently, able to exterminate. In 
cristatum the multi-partite spiny crest of the 
labellum is developed to a remarkable degree, 
and its influence is clearly discernible in the 
hybrids of which it is the progenitor. Ecuador 
is also the home of Odontoglossum Kegeljanii, 
better known in gardens as Polyxanthum, 
which occasionally becomes intercrossed with 
cristatum and produces the natural hybrid 
known as cristatellum, and this, apart from 
other peculiarities, interestingly demonstrates 
the strong inheritable nature of the latter 
species' spiny crest. In order to further test 
cristatum's power Mr. de Barri Crawshay 
united cristatellum with Odontoglossum Craw- 
shayanum, the latter, a garden-raised hybrid 
between the two large flowering species Hallii 
and Harryanum. The spiny crest, as antici- 
pated, not only appeared as strongly developed 
as ever in the resulting hybrid, known as 
Amneris, but also carried along with it much 
of the Kegeljanii form and colour markings. 
