EXPLANATION OF THE ILLUSTRATION 
Prare XV. Sretis Gracizirotia C. Schweinf. 1, 
plant, three fourths natural size. 2, flower from 
front, expanded, six times natural size. 38, petal, 
fifteen times natural size. 4, lip from side, fifteen 
times natural size. 5, lip from above, fifteen times 
natural size. 
Drawn by Dorotuy H. Marsu 
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