At: Annals of the Missouri Botanical Garden, 30, 4 By: Andrews H. N.
journalAt: Annals of the Missouri Botanical Garden, 32, 3 By: Andrews H. N.
journalAt: Annals of the Missouri Botanical Garden, 33, 2 By: Andrews H. N., Kernen J. A.
journalAt: Annals of the Missouri Botanical Garden, 35, 3 By: Andrews H. N., Baxter R. W.
journalAt: Palaeobotanist, 1957, 6, 1 By: Rao A. R.
journalAt: Scientific proceedings of the Royal Dublin Society, New Series, 13, 12 By: Arber E. A. N.
bookAt: Contr. Palaeontol. 2, Cincinnati, Ohio, James Barclay, 1 By: Miller S. A., Dyer C. B.
bookAt: Contr. Palaeontol. 2, Cincinnati, Ohio, James Barclay, 2 By: Miller S. A., Dyer C. B.
journalAt: Annals of Botany, 27, CVII By: Holden R.
journalAt: Proceedings of the Academy of Natural Sciences of Philadelphia, 1860, June By: Wood H. C., Jr.