4 
THE ORCHID WORLD. 
(OctobtT, I (J I 2. 
CYPRIPEDIUM CALLOSUM SANDERS. 
CYP'RIPEDIUM CALLOSUM was im- 
ported from Siam by Mons. Rtgnier, 
Fontenay-sur-Bois, France, about the 
year 1886. Some six or seven years later the 
albino form Sanderae was discovered. During 
the autumn of 1893 it flowered in Mr. R. H. 
Measure's collection at Streatham, and in 1894. 
Messrs. Sander and Sons exhibited it at the 
Temple Show, when it was awarded a First- 
class Certificate. The above illustration 
depicts a specimen plant in the Westonbirt 
collection, where it has been so successfully 
grown by Mr. H. G. Alexander. The .strong 
habit of the plant is well displayed, the large 
graceful white flowers are elegantly striped 
with emerald-green, and make a pleasing con- 
trast to the many rich purple and red tinted 
varieties which prove such useful adornments 
to our Orchid houses during the autumn 
months. C. callosum Sanderae and C. Law- 
renceanum Hyeanum are the parents of the 
beautiful albino C. Maudiae, an illustration of 
which was given in the ORCHID WORLD, 
Vol. II., p. 206. C. Holdenii, figured in Vol. II., 
p. 60, is the result of crossing C. Maudias with 
C. callosum Sanders, and is considered one of 
the largest albino Cypripediums. C. Memoria 
Alma Gevaert, produced by crossing C. Law- 
renceanum Hyeanum with C. Maudias, was 
exhibited by Messrs. Armstrong and Brown 
