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ODONTOGLOSSUM CORDATUM. 
abundance of air, as if it had been in an ordinary greenhouse ; yet, being favoured 
with shade, plenty of water, and a moist atmosphere, it grew in as fine a manner asl 
could be desired. 
O. cordatum may be grown attached to the material mentioned, a suitable block 
of wood with something to root into, or potted in rough fibrous peat, sphagnum moss 
potsherds, charcoal, &c., commingled, well elevating the pseudo-bulbs above the 
material in potting. The degree of moisture furnished to it when growing, must be 
regulated by the temperature it enjoys ; it will succeed well with an ample amount 
of each, favouring it, when resting, with a proportionately reverse condition. It is 
increased by separating the pseudo-bulbs, which operation should be performed 
about the period the plant commences to make a new growth. 
Odous a tooth, and glossa a tongue, in allusion to the labellum, furnishes the 
derivation of the generic name. 
