22 
THE LANGUAGE OF FLOWERS. 
flowers, and a tuft of very delicate filaments of dazzling' 
whiteness escapes from their alabaster cups. If you 
have once seen this plant, balancing gently on the 
edge of the water, you can never forget its elegance 
and grace. The bog-bean, or water-trefoil, as it is 
sometimes called, never blooms in stormy weather; it 
expands only in a calm day. 
