614 



INDEX. 



Spencer, A. C, fossil plants collected by 146, 152 



Spermatophyta 89-139, 165-173, 243-270, 303-313 



Sphsenopteris laiifolia Phill 121 



SphierococcUes arcuatu? Presl 53 



Sphenolepidium Heer 133-134, 264-265, 366-367 



dentil olium Ton t 373, 484, 52.S, 538, 546, 555, 586 



Kurrianum ( Dunk. ) Heer .. . 133, 484, 489, 519, 538, 543, 588 

 oregonense Font... 133-134, 141; PI. XXXVI, Figs. 3-8 



pachyphyllum Font. ? 281, 486, 548, 588 



parceramosum Font 484, .538, 548, 588 



Sternbergianum ( Dunk. ) Heer 264-265, 



272-373,481,484; PI. LXIX, Fig. 7 



Sternbergianum densitolium Font 480-481, 



484, 486, 489, 491, .504, 507-508, 511, 514, 

 ol5,.521, 524,626, 528, 644, 546,5.5.5, 573,588, 

 ,591; PI. CXII, Fig. 1; PI. CIX, Figs. 8, 9; 

 PI. CXV, Fig. 1; PI. CXII, Figs. 10, 11 



virginicum Font 281, 481, 484, 517, 588, 593 



sp.Dn 281 



Sphenolepis Sternberinana ( Dunk. ) Schenk 264 



Sphenopieris adianiifrons Ett 75 



afflnisPhm 59 



aniipodmn Tate ". 156 



argiUa L. & H 59 



Auerbachi Trantsch 75 



dissocialis Phill 59 



Gappei'ti Dunk , 75 



grevillioides Heer 491, 588 



Harllebcni Dunk 75 



hymenophylloides Brongn 59, 61 



Jugleri Ett 76-76 



latiloba Font.? 281, 479, 491, 511, .534, 557, 588 



longifohn Dunk 75 



Mantelli Brongn 155 



Mtm-ayana (Brongn.) Zign 62 



muscoides Phill 59 



nephrocarpa Bunb 59 



PeUall Sap 59 



Phillipsii Mant 75 



Rbmeri Dunk 156 



stipata Phill 59 



ienera Dunk 156 



valdensis Heer 75 



sp. Dn 281 



sp. Taylor 373 



sp. Yok 75 



Springfield, Md., fossil plants from 571,583-.589 



Springman, Va., fossil plants from near 485 



Stanton, T. W., collections made by 212,213,21.5,223,273 



on Alaskan fossils 152-163 



on cycadean trunk 273-274 



Stegosaurus Marshl Lucas 326 



Stemmers Run, Md., fossil plants from .571 



Stephenson's ranch, California, fossil plants from 214 



Sterculia elegans Font.? 491, 502, 588; P). CX, Fig. 6 



Storrs, James, fossil plants collected by 47, 



51-.52, 147, 176, 212, 222 



Sunset, Ariz., section through 40, 41 



Supai, Ariz., fossil wood near 35, 36 



geological conditions at 36-37 



Swainson, James, well record by 18 



T. 



Taeniopteris Brongniart 77-T8, 78-82,219,320,322 



Beyrichii (Schenk) Sew 321 



latifolia Brongn 112 



major L. & H .. 79-80, 81-82,140,143; PI. XIII, Figs. 1-3 



Taeniopteris?oregonensisFont.. 82, 140; PI. XII, Figs. 9,10 

 orovillensisFont.. 78-79, 81,140,141; PI. XII, Figs. 12-17 



parvula Heer 92 



Phillipsii (Brongn.) Presl 86 



plumosa Dn 210 



superba .Sap 83 



vittata Brongn... 80-82, 140,143,321; PI. XIII, Figs. 4-8 



Willifxm&onis (Gopp. ) Zign 79 



Tanners Crossing, Ariz., fossils from 14,24,35-36 



rocks at 27, 29 



topography at 37-38 



Taonurus incertus Dn 281 



Taxacese 129-132,171-173,258-260,311-312; PI. XXXIV 



Taxites Brongniart 129 



Zmms Phill 129 



zamioides (Leek.) Sew 129, 



131-132,141,143,151; PI. XXXIV, Figs. 15-17; 



PI. XXXV, Figs. 1-3; PI. XXXVIII, Figs. 15-18 



T:a.:iLoim'[n.{Glyptoslrobus)brookenseanguslifolium'Fo-nX. 489 



cuneatum Newb 281 



Taylor, Richard C, on Potomac formation 344-348 



Telegraph station, Va. See Lorton station. 



Terra Cotta, D. C, fossil plants from 475, 



619, .683-589; PI. CXXVII 



Texas, fossil plants from 176,326-342 



Thallophyta 151 



Thinnjeldia haiburnemis ( L. & H. ) Rac 71 



marylandica Font 538, 



541-542, 588,595; PI. CXIV, Figs. 8,9 



montanensis Font 291 



variabilis Font. 227-228, 491, 502, 628, 688; PI. CX, Figs. 7, 8 



Thome Creek, Cal., fossils near 216,223 



Thompson Creek, Oreg., fossil plants from 48-.52 



location of 48 



rocks on 49 



Thompson, Gilbert, plants found by 211, 217, 232 



Viuites expansus f Sternb 130 



?sp. Taylor 373 



Thuyoxylum americanum Ung 328 



Thyrsopteris Kuntze 61-63,226,290 



angustifolia Font 157, 516, 688 



bella Font 491, 511, .588 



brevifolia Font 281 



brevipennis Font 157, 2«1, 558 



crassinervis Font " 511, 



513-514, 528, 588; PI. CXII, Fig.'s. 5, 6 



decurrens Font 484, 



491,511,521,525,526,688; PI. CXI, Fig. 11 



densifolia Font 484, 51],. 517, 588 



dentifolia Font 320, 484 



divaricata Font 504, 611, 517, 521, 526, 588 



elegans 61 



elliptlca Font 290, 



313-314, 484, .514, 517, 538, 688; PI. LXXI. Figs. 12, 13 



insignisFont 281, 521, 626, .688 



MaakianaHeer: 59,61-62 



Jileekiana Font 619, 557, 565, 588; PI. CXIX, Fig. 1 



Meekiana angustiloba Font.? 557, 667-568, 588 



microloba alata Font 281 



Murrayana (Brongn.) Heer .... 61-63, 140, 143, 148-149; 

 PI. Vm, Hgs. 4-11; PI. XXXVIII, Figs. 3,4 



nervosa Font 511, 517, 519, .526, 528, .544, 518, 671, 5«8 



pachyrachis Font 487, 538, 557, 567, 66S. 588 



pinnatifida Font 511, 588 



rarinervis Font 218-219, 225,281, 484, 487, 



491, 514, 517, 518, 519, 526, 538, 548, 558, 567, 568, 

 688, 591; PI. LXV, Figs. 2-4; PI. CXIII. Figs.2,3 



