At: Proceedings and transactions of the Royal Society of Canada, Series 3, 1, Section 4 By: Penhallow D. P.
journalAt: International Journal of Plant Sciences, 164, 4 By: Kvaček J., Eklund H.
journalAt: Bioscience Discovery, 5, 2 By: Kokate P. S., Pundkar S. V., Thorat K. M.
journalAt: Torreya, 38, 1 By: Berry E. W.
journalAt: Proceedings of the Royal Society of Victoria, New Series, 65, 2 By: Medwell L. M.
journalAt: Palaeontologia Africana, 19 By: Anderson H. M.
journalAt: Bulletin of Geosciences, 93, 2 By: Erdei B., Calonje M., Hendy A., Espinosa N.
journalAt: Proceedings of the United States National Museum, 17, 998 By: Knowlton F. H.
journalAt: Journal of the New York Botanical Garden, 12, 45 By: Hollick A.
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