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MALE PARENT OF THE CROSS 
Plant of Euchlaena, a grass which is grown to some extent for forage in the United States, under 
the name of teosinte. The variety here represented is that from Durango, Mexico; photo- 
graphed at San Diego, Cal. In a cross with the grass shown in the preceding photograph, 
this Euchlaena proved so prepotent that the offspring cannot be distinguished from 
the male parent; while the female parent seems to have exerted no influence whatever 
on the heredity. This unusual type of heredity has been given the name of patro- 
genesis. (Fig. 3.) 
