Oligocme. PLATE XXVII 



Figures. 



1-4,8. Ulmus Braiinii, Heer, p. I'll 



5-7,9. Fraximis Libbeyi, Lesqx., p. 171. 



10. Carpinus attenuata, Lesqx., p. 152. 



11. Betula Florissant!, Lesqx., p. 150. 

 12-14. Carpinus fraterna, Lesqx., p. 152. 



