of the difference in the colour and size of its flowers, it has 
exceedingly acuminate sepals and petals, and quite another 
kind of appendage to the stalk of the labellum. Before I had 
seen the plant now figured I was disposed to believe that 
species to be the O. maculatum of La Llave, as is stated in 
the Sertum Orchidaceum, so very difficult is it to judge cor- 
rectly of the insufficient descriptions of the Mexican Botanist. 
I now find that they are truly distinct. 
