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  1. By: Crawford, M. D. C. (Morris De Camp),
    Publication info: 1916
    Holding Institution: American Museum of Natural History Library
  2. By: Crawford, M. D. C. (Morris De Camp),
    Publication info: 1915
    Holding Institution: American Museum of Natural History Library
  1. By: Crawford, M. D. C. (Morris De Camp),
    Type: Article
    In: Journal of the New York Botanical Garden
    Volume: 43
    Issue: 516
    Date: 1942-12
    Page Range: 285--293
    Publication Info: Lancaster, Pa, Published for the Garden by the New Era Printing Co, 1900-