EXPLANATION OF THE ILLUSTRATION 
Pirate XII. Stevis TRIANGULISEPALA C. Schwein- 
Jurth. 1, plant, one and one eighth times natural 
size. 2, flower, five times natural size. 3, lip from 
side, twenty times natural size. 4, lip from front, 
twenty times natural size. 
Drawn by Dorotuy H. Marsu 
