Among the first morphological studies of pollen were those of Malpighi (1686) and of Grew (1675). While numerous articles on their structure and composition of pollen have been contributed, the amount of data available in application to several problems involved in such study is yet somewhat fragmentary
Proceedings of the Iowa Academy of Science
©1929 Iowa Academy of Science, Inc.
Hayden, Ada and Martin, J. N.
"Structure and Composition of Pollen Grains of Vernal Plants,"
Proceedings of the Iowa Academy of Science, 36(1), 233-239.
Available at: https://scholarworks.uni.edu/pias/vol36/iss1/34