74 
THE ORCHID WORLD. 
[January, 1913. 
CCELOGYNEBARBATA. — This useful winter- 
flowering species has recently been seen in 
fine form in the collection of Pantia Ralli, 
Esq., Ashstead Park, Surrey. The coria- 
ceous leaves are about fifteen inches in 
length. The flower scapes are erect, pro- 
ducing a raceme of several flowers, which open 
in succession, the mdividual blossoms being 
from two to three inches across. The sepals 
and petals are pure white, the lip is distinctly 
bearded round the margin with a fringe of 
sepia-coloured hairs, and has three shaggy 
crests. Dr. Lindley regarded this species as 
one of the finest of the genus. 
Rhynchostylis retusa albc. 
Rhynchostylis retusa alba. — The 
above illustration is from a photograph of this 
great rarity flowering in the extensive collec- 
tion of Gust. H. Miiller-Abeken, Esq., The 
Hague, Holland. This species is better 
known in gardens under the name Sacco- 
labium guttatum, and is widely distributed 
from India to Java. The albino form differs 
from the type by being without the violet- 
purple markings on the sepals and petals and 
the purple colour on the lip. 
Albinism in Orchids. — A further proof 
of the interesting theory that white Orchids 
may be produced by the combination of the 
three primary colours, red, blue, and yellow, 
was given by Mr. Richd. G. Thwaites at the 
Scientific Committee Meeting of the Royal 
Horticultural Society, December 3rd, igi2, 
when he exhibited Laelio-Cattleya Osiris, a 
new hybrid produced by crossing L. pumila 
with L.-C. Ophir (xanthma x aurea). The 
sepals were creamy-white and had that 
curious greenish tinge which, in the opening 
flower, invariably denotes a subsequent state 
of pure whiteness. The petals, in a general 
way, would be described as white, but they 
had a slight suffusion of rose-purple pigment 
along their central area. The labellum was 
marked with slight purple lines and a 
suffusion of dull purple on the front lobe. 
The pumila flower carried the combined red 
and blue, while the Ophir contained the 
yellow, and although these colours have 
united in forming a white flower, they have 
not done it in so perfect a manner as to 
produce pure white in every segment of the 
flower. However, the strong effort made by 
the plant to produce a perfect albino is clear 
evidence that much may be expected in the 
near future regarding this novel method of 
producing albino Orchids. The .Scientific 
Committee considered the matter one cf 
considerable interest and wished to be 
informed of further results. 
^if O 
Cattleya Ballantiniana. — This un- 
common and little-known hybrid between 
C. Trianas and C. Warscewiczii was originally 
raised by Messrs. Sander and Sons, who 
named it m honour of Mr. Ballantine, Orchid 
grower to Baron Schroder, in whose collection 
it flowered for the first time in February, 
1889. The increasing difficulty experienced 
in making new primary hybrids has induced 
raisers to reproduce the earlier known ones 
