slender tail as long as itself; lateral two and a half inches 
long, nearly parallel, connate to beyond the middle, with an 
acute sinus, oblong, rather convex, suddenly contracted into 
a tail about a quarter of an inch long. Petals very small, 
dimidiate-oblong, with broad claws, auricled at the base on 
one side; tip almost truncate, notched. zp shorter than 
the petals; claw slender; limb linear-oblong, obtuse, with 
three longitudinal stout ridges running through its length. 
Column not winged, apex toothed.—J. D. H. 
Fig. 1.—Flower with perianth removed; 2, column and claw of lip; 3, 
column and lip ; 4, limb of lip :—all magnified. 
