two lateral ones are falcate and smooth, while the middle 
one is rounded, has a strong tooth on each side, and is 
bordered by a deep white fringe of necklace-shaped hairs ; 
then the short stalk of the lip has four or more such hairs 
growing straight from its border, and the disk is furnished © 
with a large white two-lobed flat tooth, the divisions of which 
diverge from each other. . 
The striping, banding, and painting of the delicate white 
flowers with rich crimson, produces a very rich and striking 
effect. 
