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- Poort, R.J.; Visscher, H.; Dilcher, D.L.
- Proceedings of the National Academy of Sciences of the United States of America 1996 v.93 no.21 pp. 11713-11717
- history; Pinopsida; fertilization (reproduction); plant morphology; pollen; paleobotany
- ... This year is the centenary of the surprising discovery in 1896 of zoidogamy in extant cycadophytes and Ginkgo. But by coincidence, also in the same year, the concept of prepollen was introduced. The morphology of prepollen was considered justification for the probable production of motile antherozoids in extinct gymnosperms. In this paper, the history of the prepollen concept is briefly outlined. ...