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journalAt: Report of the United States Geological Survey of the Territories, 6 By: Lesquereux L. C.
journalAt: Report of the United States Geological Survey of the Territories, 7 By: Lesquereux L. C.
journalAt: Report of the United States Geological Survey of the Territories, 1883, 8 By: Lesquereux L. C.
journalAt: Svensk Botanisk Tidskrift, 48, 2 By: Lundblad A. B.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 136, 1-4 By: Trivedi B. S., Verma C. L.
journalAt: Monographs of the United States Geological Survey, 1883, 6 By: Fontaine W.
journalAt: Bulletin of the Torrey Botanical Club, 33, 3 By: Berry E. W.
journalAt: Bulletin of the Torrey Botanical Club, 34, 4 By: Berry E. W.
journalAt: Bulletin of the Torrey Botanical Club, 36, 5 By: Berry E. W.