. Contributions from the Laboratory of Plant Genetics. PLATE XVIII nil /.eny/A S 6 7 8 M, + 2/ *4 8 No. 6o, Tom Thumb maize, showing variation in length of ear. Clas centers are even centimeters (1H).. No. 54. Black Mexican sugar maize, showing variation in length o ear Inheritance of Length of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bussey Institution. Boston : [s. n. ]

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