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journalAt: Journal of the Washington Academy of Sciences, 25, 10 By: Brown R. W.
journalAt: American Journal of Botany, 22, 2 By: Bancroft H. H.
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journalAt: Annals of Botany, 46, 84 By: Bancroft H. H.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 245, 1-6 By: Awasthi N., Mehrotra R. C.
journalAt: Bulletin of the National Science Museum Tokyo, Series, C, Geology and Paleontology, 6, 3 By: Kimura T., Ohana T.
journalAt: Geologist, 5, January By: Mackie S. J.
journalAt: Bulletin of the Torrey Botanical Club, 70, 2 By: Rosendahl C. O.