‘SEPTEMBER, 1908.] THE ORCHID REVIEW. 267 
far more distinct than would appear from their characters. Of course the 
presence of minute spots on the dorsal sepal of the former has long been 
known. Over fourteen years ago it was described as ‘‘a light yellow 
variety in which only the very faintest trace of spotting remains” (O.R. ii. 
p- 41, fig. 51), and these obscure spots can be seen in the figure. C.i. 
Sanderianum had just previously been described as ‘“ unspotted” (O.R. i. 
p- 145, fig. 17). We have seen that the former when crossed with the 
albino C. X Maudie reverts to a coloured form, also when crossed with the 
-albino parents of the same (C. callosum Sandere and C. Lawrenceanum 
Fig. 36. CyPRIPEDIUM INSIGNE SANDERIANUM. 
-Hyeanum), and partially so when crossed with C. bellatulum album. It 
now appears that C. i. Sanderianum when crossed with C. xX Mandiz 
behaves as a true albino, and such we may consider it to be. This should 
bring the variety into favour as a parent, and the other albinos mentioned 
may now be crossed with it with some confidence. C. i. Sanderz is clearly 
not a pure albino, but its colour resemblance to C. i. Sanderianum only 
makes its erratic behaviour as a parent the more surprising. Self- 
‘fertilised it retains itscharacter: crossed with an albino it not only loses 
