EXPLANATION OF THE ILLUSTRATION 
Pirate XVI. Eprpenprum strictirorMe C,Schwein- 
Jurth. 1, plant, seven sixteenths natural size. 2, 
flower expanded, from the front, two and one half 
times natural size. 3, column and lip from the side, 
natural position, two and one half times natural 
size. 4, lateral sepal, two and one half times nat- 
ural size. 
Drawn by E. W. Suitru 
