Abstract
AFTER an interval of nearly ten years, Dr. Hayden presents us with further contributions, by Lesquereux, to the Cretaceous and Tertiary floras of the United States. Those principally illustrated are from the Dakota, Laramie, and Green River groups. The author frankly admits at the outset, p. 4, that “the determinations of the plants are still, and must be for a long time to come, unreliable to a certain degree.” This admission must be kept in mind in pronouncing on the merits of the book.
The Cretaceous and Tertiary Floras of the United States.
By Leo Lesquereux. (U.S. Survey of the Territories under F. V. Hayden, Vol. VII.)
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GARDNER, J. The Cretaceous and Tertiary Floras of the United States . Nature 33, 196–197 (1885). https://doi.org/10.1038/033196a0
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DOI: https://doi.org/10.1038/033196a0
