344 Count Gaston de Saporta on the Temperature 



Acer trilobatnm, A1. Br. (Eningen, Parschlug, &c. 



■ decipiens, Al. Br. (Eningen. 



otopteryx, Gopp. CEningen, Parschlug. 



Juglans acuminata, Al. Br. CEningen, Parschlug. 



bilinica, Ung. (Eningen, Billn. 



CratcBgus owyacanthoides, Gopp. CEningen. 

 Cercis cyclophylla, Al. Br. (Eningen. 



Most of these genera seem to have attained their apogee in 

 Europe, and the more important of them unite upon the same spot 

 forms now scattered over very different countries. This affluence 

 begins to decrease when we quit this horizon to ascend towards 

 the preceding one or that of the lower Miocene. 



This is the fifth of our series : it includes the floras of Manosque 

 in Provence, Menat in Auvergne, Brognon near Dijon, Monod, 

 Hohe-Rhonen, and Eriz in Switzerland, the plants of the Sur- 

 turbrand of Iceland and of Atanekerdluk m North Greenland*, 

 those of the Baltic amber and of several other localities. 



The following is an exact list of the European genera the 

 existence of which is proved by means of these various de- 

 posits : — 



Alnus nostratum, Ung. Manosque, Monod. 



Kefersteinii, Gopp. Iceland, Monod. 



Betula elliptica, Sap. Manosque. 



Blancheti, Heer. Monod. 



macropiera, Gopp. Iceland. 



prisca, Ett. Iceland. 



Ostrya (Eningensis, Ung. Manosque. 



Walkeri, Heer. Greenland. 



Carpinus grandis, Ung. Manosque, Monod. 

 Corylus insignis, Heer. Hohe-Rhonen. 



Macquarii, Heer, Menat, Iceland, Greenland, Hohe-Rhoiien. 



Quercus Olafseni, Heer. Iceland, Greenland. 



elcena, Ung. Monod. 



drymeja, Ung. Greenland. 



Fagus pristina, Sap. Manosque. 



Deucalionis, Ung. Greenland. 



■ castanecefolia, Ung. Greenland. 



Ulmus Fischeri, Heer. Monod. 



diptera, Steenstr. Iceland. 



discerpta, Sap. Manosque. 



Populus Gaudini, Heer. Monod. 



Richardsoni, Heer. Iceland, Greenland. 



Zaddachi, Heer. Greenland, Amber. 



Salix macrophylla, Heer. Eriz, Iceland. 



Gaudini, Fisch. Monod. 



Platanus aceroides, Gopp. Iceland, Greenland. 

 Fraxinus ineequalis, Heer. Manosque, Monod. 

 denticulata, Heer. Greenland. 



* See *Ueber den versteinerten Wald von Atanekerdluk in Nord- 

 Groenland,' by Prof. Oswald Heer. 



