flowers of some are violet, of others light blue, and finally 
of the variety before us white. 
Unfortunately our artist has paid no attention to the 
character of the involucrum, which is, therefore, in the 
- accompanying figure extremely inaccurately represented. 
In reality it consists of a few very narrow, rather leafy, 
spreading scales, which seem as if they all originated from 
the same circle, and have a somewhat sguarrose appear- 
ance: otherwise the figure is faithful enough. 
