Bul. 179, U. S. Dept. of Agriculture. PLATE XIII. 
STONES OF HYBRID VARIETIES OF PRUNUS. 
Fic. 1.—Prunus orthosepala. Fias.2to15.—Hybrids: 2, Cultivated tree, Highland Park, Rochester, 
N. Y. (originally from Ellis, Kans.); 3, 4, and 5, Laire variety; 6, Surprise; 7 and 8, Hammer; 9, 
Ames; 10, Prunus maritima hybrid; 11 and 12, Marianna; 13, Six Weeks; 14, Maryland; 15, 
Compass. (Natural size.) 
