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Journal Article
Vitt DH, Crum HA, Snider JA.  1975.  The vertical zonation of Sphagnum species in hummock-hollow complexes in northen Michigan. Michigan Botanist. 14:190-200.
Crum HA, Miller NG.  1967.  Three propaguliferous Pohlias from Michigan. The Bryologist. 70:118-119.
Crum HA.  1981.  Taxonomic and nomenclatural notes on middle American mosses. The Bryologist. 84:390-393.
Zales WM, Crum HA.  1970.  Sphagnum in Charlevoix County, Michigan. Michigan Botanist. 9:114-115.
Crum HA.  1973.  Mosses of the Great Lakes Forest. Contributions from the University of Michigan Herbarium. 10:1-404.
Crum HA.  1964.  Mosses of the Douglas Lake region of Michigan. Michigan Botanist. 3:3-12,48-63.
Crum HA.  1972.  Mosses new to the state of Michigan. Michigan Botanist. 11:123-124.
Crum HA.  1970.  Mosses new to the flora of Michigan. Michigan Botanist. 9:139-141.
Crum HA.  1972.  The geographic origins of the mosses of North America's eastern deciduous forest. The Journal of the Hattori Botanical Laboratory. 35:269-298.
Crum HA.  1979.  An expanded description of Sphagnum splendens. Michigan Botanist. 18:69-72.
Crum HA.  1975.  Comments on Sphagnum capillaceum. Contributions from the University of Michigan Herbarium. 11:89-93.
Miller NG, Crum HA.  1966.  Bryophytes new to the Douglas Lake area. Michigan Botanist. 5:57-61.
Crum HA, Miller NG.  1969.  Bryophytes new to Michigan. II. Michigan Botanist. 8:28-29.
Crum HA, Miller NG.  1968.  Bryophytes new to Michigan. Michigan Botanist. 7:132-134.
Crum HA, Miller NG.  1967.  Bryophytes from the Upper Falls of the Tahquamenon. Michigan Botanist. 6:54-57.
Crum HA.  1965.  Additions to the Douglas Lake bryoflora. Michigan Botanist. 4:26.