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bookAt: Contr. Fl. Foss. Terz., Genova, Tipografia del R. Istituto Sordo-Muti, 1891, 3, [2] By: Squinabol X.
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journalAt: Cretaceous Research, 25, 5 By: Krassilov V. A., Lewy Z., Nevo E.
journalAt: Anais da Academia Brasileira de Ciências, 32, 3-4 By: Sommer F. W.
journalAt: American Journal of Botany, 69, 2 By: Rothwell G. W.
bookAt: Nat. Pflanzenfam., Leipzig; Berlin, W. Engelmann [Leipzig]; Duncker & Humblot [Berlin], 2, 13 By: Kräusel R.
journalAt: International Journal of Plant Sciences, 164, 1 By: Wang S.-J., Hilton J., Tian B.-L., Galtier J.
journalAt: International Journal of Plant Sciences, 170, 3 By: Hilton J., Wang S.-J., Galtier J., Bateman R. M.
journalAt: American Journal of Science, Series 4, 38, 223 By: Elkins M. G., Wieland G. R.