32 
C Wallet 
Le. 
28. 
It is allied to Odontoglossum Cervantesu and O. Rossii. From the former, 
which it much resembles, it is very easily distinguished by its relatively smaller 
lip, with very different unguis and crest, and by the total absence of the wings 
of the column. The latter has the sepals spotted almost or quite to the apex, 
and the large front lobe of the lip is unspotted, besides which the colours of 
the two are quite different. 
O. nebulosum generally. flowers during May and June, and requires similar 
treatment to O. Rossii and the other Mexican Odontoglots. 
R. A. Roire. 
vo 
