selected publications
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article
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Microspore Variation in Lepidostrobus and Comparison with Lycospora.
Micropaleontology.
12:334-342.
1966
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Paleozoic Lycopsid Fructifications. II. Lepidostrobus takhtajanii in North America and Great Britain..
American Journal of Botany.
53:275-283.
1966
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Paleozoic lycopsid Fructifications. I. Lepidocarpon petrifactions.
American Journal of Botany.
52:317-330.
1965
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Observations on the Ontogeny of Lepidocarpon.
American Journal of Botany.
49:984-989.
1962
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Paleozoic Lycopsid Fructifications. III. Conspecificity of British and North American Lepidostrobus Petrifacitions..
American Journal of Botany.
54:867-875.
-
Microspore Variation in Lepidostrobus and Comparison with Lycospora.
Micropaleontology.
12:334-342.
1966
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book
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A laboratory manual for botany, 7th ed..
Philadelphia: Saunders College Pub.
1991
-
A laboratory manual for general botany, 6th ed..
Philadelphia: Saunders College Pub.
1982
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The Plant World. Fifth Edition..
New York: Holt, Rinehart and Winston.
1972
-
A laboratory manual for botany, 7th ed..
Philadelphia: Saunders College Pub.
1991
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thesis or dissertation