398 



INDEX. 



POPULUS-Contlnned. 



microph \ II a Newb ^«5 



mutablis Heer 43,120 



priic^va Heer 237 



stygia Heer, PI. Ill, Fig. 12 44,112 



Zadilachi 238 



Proteaceje 89 



Protee^ ■ 90 



Proteoides 90 



daphnnuenoides Heer 78, 90 



greviUeseformia Heer 90 



laocifolius Heer, PI. XV, Fig. 5; PI. L, Fig. 8. . . 90 



longus Heer 67 



Protophyllum 187 



crassum Lesq., PI. LXV, Fig. 4 193,213 



crednerioides Lesq., PI. XXXVI, Fig. 11; PI. 



XLIII, Fig. 4-5 194 



orenatum Knowlton, PI. LXV, Fig. 7 190 



denticnlatiim Lesq., PI. XXXVI, Fig. 9 193 



dimorpham Lesq., PI. XLI, Fig. 1 190 



Leconteanum Lesq., PI. XL, Fig. 1 187 



Haydenii Lesq., PI. XLIII, Fig. 1 ; PI. XLlV, 



Figs.1,2 192,195 



iutegerrimum Lesq., PI. XLIII, Fig. 3 192,195 



MudgeiLesq. 195 



multinerve Lesq., PI. XLIII, Fig. 2 : PI. LXV, 



Fig.l 191 



nebrasoeDse Lesq 195 



prsestans Lesq., PI. XLI, Figs. 2, 3: PI. XLII, 



Fig8.3,4 188 



pseudospermoides Lesq.. PI. LIX, Fig. 2 194 



pterospermifolium Lesq., PI. LIX, Fig. 1 195 



quadratum Lesq 189, 195 



rugosum Lesq. 194, 195 



Sternbergii Lesq., PI. XLII, Fig. 1 187, 189,192 



undalatum Lesq., PI. XLII, Fig. 2 1 89 



PrUNEjE 144 



Prunus 144 



(Amygdalus) ?ajitecedeD8Le8q.,Pl. LV, Fig. 4 .. 144 



arbntifoliaL 264 



cretacea Lesq 254 



pereger Ung 145 



sernilata Heer 254 



PXENOSTBOBUe 36 



Ptenoatrobas nebrascen-sis Lesq 36 



Pteride.« 24 



Ptbkis 24 



dakotensisLesq., PI. I, Figs. 2, 3 24 



Pterophylluni? Raydenii'LeHq 26 



Ptekospermites 186 



Haydenii Lesq 192 



longeacuminatiis Lesq., PI. LIX, Fig. 3 186 



modestas Lesq., PI. LVIII, Fig. 5 1S«> 



multiiiervis Lesq 191, 192 



quadratits Le»q 195 



ritgogus Lesq 195 



sagorianura Ett 186 



Pterospermnm saberifoUum Wtlld 187 



PYRENOJtYCETES 23 



Pykus 144 



? cretacea Newb 144, 254 



QUEBOINE* , 51 



QUERCUS 52 



advenaSap 54 



agrifolia N6e 53 



QUEROUS— Continued. 



alnoides Lesq, PI. VU, Fig. 3 54 



angnstiloba AI. Br 235 



antiqua Newb 55 



bicornis Ward 235 



Championi Benth 54 



chrysophylla Kellogg 53 



cuneataNewb 55 



(Dryopbylluni) dakotensis Lesq., PI. VII, Fig. 4. 56 



Deloesi Heer .'52.54 



Ellsworthiana Lesq 55, 9.>, 2(5 



glascoenaLesq., PI. VI, Fig. 6 55 



hesagonaLesq., PI. VII, Fig. 5 56,234 



(Dryopbyllum) hieracifolia (Deb.) Hos. and t. 



d. Marck, PI. lU, Fig. 15 58,234 



(Dryophyllum) Hchnesii Lesq 58 



(Dryophylliim) Uosiaua Lesq , PI. Ill, Fig. 14. . . . S7 



ilexL 53 



Largilensis Sap 55 



(Dryophyllum) lati folia Lesq 58, 235 



latissima Hob 52, 139 



Morrisoniana Lesq 55 



nevadensia Lesq 58 



Of*bornii Lesq 56 



porauoides Lesq. — 56 



(Dryopbyllum) primordialis Lesq 56, 235 



pseudolyrataLesq 235 



(Dryopbyllum) rhamnoides Leaq., PI. XL VIII, 



Fig. 4 57 



Kiukiana Heer 235 



salicifolia Newb 55,235 



semialata Lesq 195 



cuueata Newb 55 



(Dryopbyllum) subcretaceum (Sap.) Lesq 54 



spurioilex Knowlton, PI. XLVItl. Fig. 3 53 



suspecta Lesq., PI. XL VII, Fig. 7; PI. XLVIIl, 



Figa.1,2 52 



tbulenais Heer 235 



troglodites Heer 56,234 



VictoriieDn 235 



Wardiana Leaq., PI. VII, Fig.l 53,235 



Warningiaua Heer 235 



weatfalica Hos. &, v. d. Marck 57, 139 



WilmsiiHos 52 



RhAMNITES ; 171 



apiculatus Lesq., PI. XXXVII, Figa. 8-13 171 



colubrinoides Ett 172 



Rhamne* 165,168 



Rhamni'8 168 



Eridani 71 



in.'equilateralis Le.sq., PI. XXXVII, Figs. 4-7. .. 1 70, 253 



Mudgei Lesq.. PI. XXXVII, Figs. 2,3 169,170 



iiuiingeuaia Al. Br 170,253 



prunifoliua Lesq.. PI. XXXV, Fig. 14 169 



Purshianus DU 168 



rectinervis Heer 168, 252 



revoluta Lesq., PI. LXV, Fig. 5 171 



similis Leaq., PI. XXXV, Figa, 12. 13 168,252 



subsinuatus Gopp 112 



lenax Lesq., PI. XXXVIII, Fig. 6 I70 



RHUS 154 



ambigna TTng 154 



copallina L 155 



delcta Heer 154 



juglandogene Ett 155 



