ASCLEPIAS TUBEROSA. 
Butterfly Weed. 
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PLATE XXVUI. 
F EW genera are more curioiis and intricate 
in their structure, than that to which our present 
article belongs. The plants which constitute the 
family of Asclepias are so peculiar in their habit, 
that they are easily recognized eyen by the inex- 
-perienced botanist, while their minute structure 
_is so complicated, as to require not a little atten- 
tion for its perfect development. This fine race 
of plants are so abundant in the United States, 
that every month of the summer season presents 
us a number of beautiful species. By far the 
_most rich and gaudy of these in appearance is the 
_Asclepias tuberosa, known by the vulgar names 
of Butterfly weed and Pleurisy root, and found in 
_dry, sandy soils, pine woods, &c. from ‘Massachu- 
