266 THE ORCHID REVIEW. [SEPTEMBER, 1908. 
Sanderz overboard,’ as ‘not a pure albino.’ I have always looked 
upon the variety Sanderianum as the pure albino of the species, all 
other varieties having more or less trace of colouring inthem. Sander 
is undoubtedly the best yellow form, but I have never seen a flower 
without a few coloured specks or pin-like brown dots at the base of 
the dorsal sepal, and flowers of this variety produced by strong vigorous 
plants, grown cool, have nearly always more spots, which are then more 
prominent. It is rather curious that C. insigne Sandere self- fertilised should 
maintain its character but when crossed revert, whilst Cattleya Mossiz 
Reineckeana xX Brassavela Digbyana produces pure albino hybrids. This 
Fig. 35. CYPRIPEDIUM X MAUDI&. 
has occured here, and the Reineckeana used was cne having a rich dark lip. 
It is an interesting subject, and I hope to have your further opinion.”’ 
The flower sent is very beautiful, without a speck or shade of brown 
anywhere. It is clear shining yellow, with the usual slight greenish tinge, 
while the dorsal sepal is lined with emerald green, except at the sides and 
the white apex. The dorsal sepal is slightly concave, and its diameter is 
nearly 23 inches, while the flower measures over 5t inches from tip to tip 
of the petals. In other respects the figure speaks for itself. 
The success of Mr. Alexander’s experiment is as welcome as it is 
Surprising, and suggests that C. insigne Sanderz and C.i. Sanderianum are 
