X ILLUSTRATIONS. 



Page. 



Plate XLIII. Fig. 6. Quercus simplex Newb_ _ . 240 



7. Acorn of Quercus consirnilis Newb 240 



8. Cupule of Quercus consimilis Newb 240 



9. Base of acorn of Quercus consimilis Newb 240 



10. Interior of cupule of Quercus consimilis Newb __ 240 



XLIV. Figs. 1-4. Betula heterodonta Newb. . 242 



5. Platanus aspera Newb _ 242 



XLV. Fig. 1. Betula heterodonta Newb 244 



2-5, 8. Ulmus speciosa Newb 244 



6. Fruit of Betula heterodonta Newb 244 



7. Fruit of Ulmus speciosa Newb . ._ 244 



XLVI. Fig. 1. Ficus planicostata Lesq _ 246 



2. Grewia crenata (Ung. ) Heer 246 



3, 4., Populus polymorpha Newb._ 246 



5. Betula angustifolia Newb __ __ 246 



6. Alnus serrulata f ossilis Newb 246 



7. Fruitof Alnus sp.? Newb. . , 246 



8. Fruitof Acer sp.? Newb 246 



9. Monocotyledon gen. et sp.? Hollick 246 



10. Fruit of Cassia sp.? Newb 246 



XLVII. Figs. 1, 2. Liquidambar Europaeum Al. Br ^ 248 



3. Fruit of Liquidambar Europseurn Al. Br 248 



4. Populus polymorpha Newb 248 



5. Betula angustifolia Newb _ 248 



6. Taxodium distichum miocenum Heer ". 248 



7. Fruitof Sequoia Heerii Lesq 248 



XLVIII. Fig. 1. Crataegus flavescens Newb 250 



2, 3. Grewia crenata (Ung.) Heer 250 



4. Corylus MacQuarrii (Forbes) Heer . 250 



5. Pteris pennseforniis Heer 250 



6. Lastrea (Goniopteris) Fischeri Heer ? 250 



7. Rhamnus Eridani Ung 250 



8. Alnus Alaskana Newb _ 250 



XLIX. Figs. 1-3. Fraxinus integrif olia Newb 252 



4. 7-9. Populus polymorpha Newb : 252 



5. Fraxinus affinis Newb 252 



6. Fraxinus denticulata Heer ? 252 



L. Fig. 1. Platanus nobilis Newb _ 254 



2. Rhamnus elegans Newb 254 



LI. Fig. 1. Ficus (?) Alaskana Newb.. _ 256 



2, in part. Vitis rotundif olia Newb 256 



3, in part. Juglans nigella Heer 256 



3, in part. Quercus Gronlandica Heer 256 



3, in part. Taxodium distichum miocenum Heer 256 



4. Juglans nigella Heer 256 



LII. Fig. 1. Ficus (?) Alaskana Newb .... 258 



2, 3 and 4 in part. Taxodium distichum miocenum Heer. 258 



3 and 4 in part, 5. Prunus variabilis Newb. 258 



LIII. Figs. 1, 2. Pterospermites dentatus Heer 260 



