EXPLANATION OF [ILLUSTRATION 
STELIS CRESCENTIICOLA Sch/tr. Plant natural size, 
drawn from a duplicate type of 8. praemorsa Schltr. 
1, flower enlarged about twenty times. 2, label- 
lum enlarged about thirty-two times. (The circu- 
lar area which appears to be a hole is made up of 
the paler tissues of the basal callus which becomes 
abruptly narrowed at its distal end and fills the 
space between the convergent lobes of the disc). 
8, labellum and column viewed from the side, en- 
larged about thirty-two times. 4, column (anther 
removed) enlarged about thirty-two times. 5, petal 
enlarged about thirty-eight times. 6, part of the 
raceme, much enlarged. 
Drawn with the aid of the camera lucida from 
specimens (preserved in alcohol) ef Powell 234 by 
BLaNcHE AMES 
