204 THE ORCHID REVIEW. (JULY, 1915. 
utilised for purposes of classilication is doubtful, for the source of many 
blotched crispums is unknown. Were it otherwise the amount of variation 
among seedlings from the same capsule would upset all calculations. 
It would, however, be a very interesting experiment to self-fertilise some 
distinct and good blotched ‘“‘crispum”’ and then compare all the resulting 
seedlings, for one might get an idea of its composition by the amount of 
reversion shown. It need not be a waste of time, for the probability of 
something good resulting is practical 
some other blotched crispum. 
— 
y as great as if it were crossed with 
We do not remember that any such 
Pig. 27 
- 27. ODONTOGLOSSUM STEWARTIANUM. 
(Andersonianum magnificum Xx crispum heliotropium.) 
experiment has been undertaken, or at least the results recorded, but it 
would be very instructive. Continued crossing introduces confusing 
elements, and what is wanted is the self-fertilisation of some hybrid of 
mixed ancestry. We know that they are fertile, and that reversion takes 
place; the question now is who will make the experiment and give US 
something definite to work upon. : 
The accompanying figures illustrate some of the difficulties of the 
question. Fig. 25 (p. 202) represents a striking Odontoglossum which 
appeared in an importation of O. crispum wih Messrs. James Veitch 
& Sons. It was named O. Chestertonii, after the collector, and received 4 
