ORCHIDS AND HYBRIDIZING. 231 
to Burmah, and from Burmah to Luzon in the 
Philippines ; at least, 1 am utterly unable to credit 
it. If the plants were identical, or nearly, in 
their different habitats, this case would be less 
significant. But the D. heterocarpum of Ceylon 
has a long, thin pseudo-bulb, with bright yellow 
flowers; that of Burmah is short and thick, with 
paler colouring ; that of Luzon is no less than 
three feet high, exaggerating the stature of its 
most distant relative while showing the colour of 
its nearest ; but all, absolutely, the same botanic 
plant. I have already mentioned other cases. 
Experience hitherto suggests that we cannot 
raise Odontoglossum seedlings in this climate; 
very, very few have ever been obtained. Attempts 
in France have been rather more successful. 
Baron Adolf de Rothschild has four different 
hybrids of Odontoglossum in bud at this present 
moment in his garden at Armainvilliers, near 
Paris. M. Moreau has a variety of seedlings. 
Authorities admit now that a very great pro- 
portion of our Odontoglossums are natural 
hybrids ; so many can be identified beyond the 
chance of error that the field for speculation has 
scarcely bounds. O. excellens is certainly de- 
scended from O. PescatoreZ and O. triumphans, O. 
elegans from O. cirrhosum and O. Halli, O. Wattz- 
