MacDougal, Daniel Trembly

1865 – 1958

• Botanical features of North American deserts
• Elementary plant physiology
• Experimental plant physiology
• Growth in trees
• Growth in trees and massive organs of plants
• Heredity and the origin of species
• Hydration and growth
• Hydrostatic-pneumatic system of certain trees
• Mutants and hybrids of the oenotheras
• Mutations, variations, and relationships of the oenotheras
• Practical text-book of plant physiology
• Reversible variations in volume, pressure, and movements of sap in trees