EXPLANATION OF THE ILLUSTRATION 
PLate XV. Eprpenprum pasiTensE C.Schweinfurth. 
1, plant, one half natural size. 2, flower partially 
expanded, from the front, one and one half times 
natural size. 3, lip and column from the side, nat- 
ural position, one and one half times natural size. 
4, lamina of lip expanded, from the front, twice 
natural size. 5, lateral sepal, twice natural size. 
Drawn by E. W. Surru 
