Megaspores from the Michigan coal basin /Author: Arnold, Chester A.
Publisher: Ann Arbor : University of Michigan Press,
Date: [1950] This title can be found in 1 Iowa libraries.
Pennsylvanian spores of Illinois and their use in correlation.Author: Kosanke, Robert M.
Publisher: Urbana : State Geological Survey,
Date: 1950. This title can be found in 2 Iowa libraries.
Formation of the spores in the sporangia of Rhizopus and of Phycomyces nitens.Author: Swingle, Deane B.
Publisher: Washington, Govt. Print. Off.,
Date: 1903. This title can be found in 1 Iowa libraries.
Gametophytic regeneration as exhibited by mosses, and conditions for the germination of cryptogam spores ...Author: Heald, F. D.
Publisher: Leipzig : Printed by Oswald Schmidt,
Date: 1897. This title can be found in 1 Iowa libraries.
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