APRIL, 1908. | THE ORCHID REVIEW. 105 
spots light purple. Inthe typical form the ground colour is cream yellow, 
and the blotches brownish purple. The third flower, which we also saw, 
may be described as fairly intermediate between the two, as might have 
been expected. The figures are taken on precisely the same scale, having 
been taken on one plate, and were only separated because the photographer 
had placed them too far apart for reproduction in one block. The parent 
varieties are well known, but it may be added that the P. bellatulum used 
as the pollen parent was a good ordinary spotted form, and that P, 
bellatulum album was the pollen parent in the other two cases. It may be 
pela 
Fic. 18. .PAPHIOPEDILUM, HELENA VAR. ARMSTRONGI® 
added that P. x Helenais the adopted name ot this hybrid (O.R. x. p. 64). 
It is quite clear that the hybrid variety does not answer to the Mendelian 
prediction, and the reason I believe to be that when the albinos of widely 
separated species are intercrossed an opportunity is afforded for reversion, 
or a return to the normal, as explained in greater detail at page 60. A 
multitude of diverse ancestral ‘‘ tendencies ” are combined in such a hybrid, 
and if one could only trace the history of the two parents back to their 
common starting point one could realize better the question to be solved. 
It is here that the hypothetical characters “C” and “P” may be looked 
