EXPLANATION OF PLATE IV. 



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Fig. 1, Alnites quadrangularis, Lesqx 62 



Figs. 2, 3, Cvllis? ovata,Lesqx - 6G 



Fig. 4, Platanus afflnis, Lcsqx 71 



Fig. C>, Populites cyclophylla, Heer ? 59 



