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  1. By: McDonald, G. I. (Geral I.) - Andrews, Duane S. - Intermountain Forest and Range Experiment Station (Ogden, Utah) - United States. Forest Service.
    Publication info: Ogden, Utah, Intermountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1980
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Effect of temperature on  Morphology  Plant spores  Plants  White pine  
  2. By: Roubik, David W. (David Ward), - Moreno Patiño, Jorge Enrique.
    Publication info: [St. Louis], Missouri Botanical Garden, c1991
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Barro Colorado island  Classification  Panama  Plant spores  Plants  Pollen