• Infection experiments with Puccinia helianthi Schw 

    Monroe, Elizabeth (University of Missouri--Columbia, 1916)
    "Sunflower seedlings were grown in four or five inch flower pots. The seed was obtained from Henry A. Dreer, of Philadelphia, J.M. Thorburn and Co., of New York, Rev. J.M. Bates, of Red Cloud, Nebraska, E. Bartholemew, of ...