It is a native of Texas, whence it was sent to Sir William 
Hooker, by the late Mr. Thomas Drummond, in 1835. 
Fig. 1. represents a corolla cut open, to shew the inser- 
tion of the stamens; 2. is an ovary cut across, together with 
a cup-like disk in which it is seated ; 3. is the calyx opened 
out, to shew the pistil; and 4. is a very highly magnified 
view of one of the hairs that so thickly clothe the calyx; the 
surface of the hair is thickly studded with minute elevated 
points, a circumstance by no means common. 
