EXPLANATION OF THE ILLUSTRATION 
Piate XVI. Potyoriptum Hursnert (Mansf.) Garay. 
1, plant, three quarters natural size. 2, lateral sepals, 
four times natural size. 3, petal, five times natural 
size. 4, lip, five times natural size. 5, column, lateral 
view, nine times natural size. 6, column, front view, 
eight times natural size. 7, pollinia, greatly enlarged. 
8, anther, greatly enlarged. 
[ 106 ] 
