EXPLANATION OF THE ILLUSTRATION 
Prare LIV. Upper: Seeds of Datura KyYMATOCARPA 
Barclay (Leavenworth, No. 1615). Lower: Seeds of 
the type of Darura resurra Barclay (T. 8. 
Brandegee, s.n., Sept. 14, 1904). 
Photograph by Cuarces Ditties 
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