EXPLANATION OF THE ILLUSTRATION 
Prare XLVI. Soranum Topiro HBK, 1, flowering 
branch, with medium-sized leaf, about one half 
natural size. 2, portion of the upper surface of the 
leaf, greatly enlarged. 38, portion of the nether 
surface of the leaf, greatly enlarged. 4, inflores- 
cence, about one half natural size. 5, fruits, about 
one half natural size. 6, young leaf, about one half 
natural size. 
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