118 
INDEX. 
Page. 
Lycopodium ?esquereuxiana n. sp. 24 
Lygodium Kaulf usii Heer 21 
neuropteroides Lx.. .. 21 
Magnolia acuminata L 56 
Ingle feldi Heer 55 
primigeniaHeer. 58 
pseudoacuminata Lx 56 
pulchra Ward - 57 
tenuinervis Lx., PI. XIV, fig. 1 55 
Malapoenna macrophylloides n. sp., PI. 
XIV, figs. 4,5 57 
Marsilea ? attenuata (Lx.) Hollick . 23 
Menispermites grandis Lx 62 
Knightiin. sp., PI. XV, fig.2 61 
Montana flora, discussion of - - 76-77 
formation, description of plants of.. . 17-76 
Myrica sp., PI. VI, fig. 4 34 
Torreyi Lx., PI. VI, figs. 1-3 34 
Nelumbium arcticum Heer 54 
Lakesianum Lx. 54 
pygmseum Dn 54 
saskatchuense Dn 54 
tenuifolium Lx 54 
Nelumbo? sp., PI. XIII, fig. 6... 54 
Dawsoni Hollick 15,16,32,54 
intermedia n. sp., PI. XIII, figs. 3-5.. 63,54 
laramiensis Hollick 54 
Neuropteris angulata ? Newb 62 
New Mexico, Montana formation in 9 
Ottelia americana Lx 32 
Persea speciosa Heer 59 
Phyllites sp., PL IX, figs. 4,5 75 
triloba n. sp., PI. XVIII, fig. 2 74 
Pinus Quenstedti Heer, PI. Ill, fig. 10 ... . 26 
type of Pityoxylon 15 
Pistia corrugata Lx 15,16,31,53 
Plants from right bank of Missouri River, 
7 miles below the Coal Banks 11-17 
Platanus sp ... 15 
marginata (Lx.) Heer. 71 
Newberayana Heer 73 
nobilis Newb 15,16 
Wardii n. sp., PI. II, figs. 1-4 14 
Podogonium americanum Lx 65 
Point of Rocks, Wyoming, account of ge- 
ology of 6-7 
Populus sp. 15-37 
acerifolia Newb 15,16 
arctica Heer 44 
latidentata Dn 15,16 
melanaria Heer _ 35 
melanarioides Lx 35 
mutabilisovalis ? Heer, PI. VII, fig. 3.. 37 
nebrascensis Newb 37 
nervosa Newb... _ 37 
obovatan. sp., PI. VII, fig. 4 34 
tremulaefolia Sap... 36 
Wardii n. sp., PI. VI, fig. 7 36 
Pterospermites minor Ward 66 
undulatus n. sp., PI. XVI, fig. 3; PI. 
XVII, fig. 2; PI. XVIII, fig. 4 67 
Page. 
Pterospermites Wardii n. sp., PI. XV, fig. 
4; PI. XVI, fig. 1 66 
Quercus acrodon Lx 39 
Dentoni Ward 40 
dentonoides n. sp., PI. VII, fig. 7 40 
Lesquereuxiana n. sp., PI. VII, fig. 1 - 39 
? montanensis n. sp.,Pl. I, fig. 10 11 
pseudo-alnus 40 
Rhamnus Cleburni Lx 47 
goldianusLx 47,52 
salicifolius Lx 70 
Rhus membranacia Lx 61 
Sabcd Grayana Lx 32 
Sabalites Grayanus Lx, PI. VI, fig. 5 32 
Salisburia polymorpha Lx 11 
Salixsp., PI. VII, fig. 2. 39 
angusta Al. Br., PI. VII, fig. 6 38 
elongata O. Web 39 
integra Gopp 70 
Stantonin. sp., PI. VI, fig. 6 38 
Salvinia attenuata Lx 23 
Selaginella falcata Lx., emend.. 25 
falcata Lx,ex.p 24 
laciniata Lx 24 
Sequoia sp 27 
affinis Lx 27 
biformis Lx 28 
brevifolia Heer, PI. IV, figs. 1-4 27 
Couttsise Heer.. 27 
Langsdorfii Heer 27 
longifoliaLiX 28 
Reichenbachi (Gein) Heer 28 
Reichenbachi (Gein. ) Heer 15, 16 
type of S. gigantea 15 
type of S. sempervirens 15 
Sterculia variabilis Heer 47 
Taxites, type of Taxus baceata 15 
Thinnfeldia montana Kn., PI. T, figs. 
1-3 11 
polymorpha (Lx.) Kn 11 
Thuites crasswsLx 29 
Thuja, type of T. occidentalis 15 
Trapa, cf. T. borealis 15 
? cuneata n. sp. , PI. V, fig. 6 64 
? microphylla Lx. , PI. V, fig. 7 62 
Ulmus sp 15 
Viburnum anomalum n. sp 72 
marginatum Lx 71 
montanum n. sp., PI. XIX, figs. 1, 2 . . 73 
? problematicum n. sp., PI. XIX, 
fig. 4 71 
rotundifolium Lx 72 
Whymperi Heer, PL XVII, fig. 1; PI. 
XVIII, fig. 1; PL XIX, fig. 3 72 
Widdringtonia antiqua Sap 30 
? complanata Lx 30 
Woodwardiasp., PL III, fig. 9 23 
angustifolia Sm 22 
arctica Heer 22 
areolata Moore 22 
crenata n. sp., PL III, fig. 3 22 
o 
