INDKX. 



611 



Pa«e. 



Pecopteris hailntrnrnsit L. & H < 1-/- 



JUdtoni (Dunk.) Brongii "'' 



h,.'i<m!s\.. &. H <'>'.™ 



Ihjala rhill ''•* 



hm,iijiilm I'hill '■''' 



luiiToilonta Fimt ~^^ 



montaiK'iisis Font ~^^ 



Murnvjana YSmwgn ^^ 



oWKSi/o/itt (Murr.) L. & n "J 



paiici/nlia rhill ^"^ 



Phillipiiii BnmK" ''^ 



rintii'lii Si'hoiuv '>' 



puhlttnetijla V,i\\\\< -■'" 



pohimwiilni Dunk '--'< 



slrMinerm Font lo8-15U. ■2'29, 2;U--j;w. .>10 



tenuis i»clii>iiw '* 



iiH*i«sL. &1I I'f^.'O 



I'ngrri Dunk --** 



virtriniftisis Font '*-"*■ 



4'<0,538,5I.S,.'>.')2-5."lS,58r.: I'l. CXVI, Fi^s. :!, 4 



whitliifusis Bronsn 67-6S 



Williamsonis Brongu C** 



Pectinizamitt's Fontaine ■"" 



IVnluillow, D. 1'., fossil fern dusoribecl anrt ligured liy. 21U 



Pennsylvania, fossil plants from 169 



Potomac formation in 379,3«2-3Si3 



Permian rocks, fossil plants from K>9 



Petersburg belt, correlation of 3.')4-3.^.'> 



Petrified Forest, Ariz., buttes in, occurrence and clun- 



iH'ter of '-.5 



conditions in •*! 



petrified wood from 30-36 



rocks in "-(). •-!, 2-i. 27, 43 



section through 42-43 



Petrifieil wood, occurrence and character of 15, 



30-37, 214, 32l',-327, 343-344 



occurreiu-e of, in place 33-34 



Pettyjohn's ranch, C'al., fossil plants near 211, 



214, 217-220, 232 



Phlebopteris f undans ( L. & H. i Brongn 68 



PhcEDicopsis Heer 12.S-129 



speciosa Heer f-S 



?sp. Font 1-.'S-12!), lU; I'l. XXXIV, Figs. 13. 14 



Phyllites seitamiueieformis Sterub 81 



Phylloptcris I'h iUipsii Brongn 80 



Phytolithns 137 



Picea excelsa (I'oir.) Link 531, fA') 



Piceiifn (.tnijijrm ( Corda ) Gbpp 263 



Piedmont, S. Dak., section near 318 



Pinacca; 131-135, 260-265, 312-313 



Finales 129-135, 171-173, 2.5.8-265, 31 1-312 



Pini tes 327 



txogyrus (Corda) ICnill 2(i3 



Leei Font oiO, 586, 595; PI. CXIX, Figs. 6, 7 



Pink ClifTs. Ariz 42, 43 



Pinus Linn:ens 131-132, 262-263 



anthraciticusDn 281 



exixjyra Corda 263 



Nordenskioldi Heer 131-1S2, 



141-143, 281, 514, .58i;; PI. XXXV, Figs. 10-17 

 schisttl Ward.. 497-498, 528, 531, 586; PI. CXII, Figs. 13-15 



shastensis Font 28S-263, 272; PI. LXIX, Figs. 1-3 



staratschini Ileer 1.58, 160 



siisquaensis Dn 281 



vernonensis Ward.. 4al, 4»;-498, 586: Pl.CIX, Figs. 4-6 

 Mtch, fossil secretiims of :<4-36 



Page, 



I'lantaginop.sis Fontaine .Ml-SiW 



marylandica Font 657, 561-563, .569, fi.%, 694. 



595; I'l. CXVn, Fig. 7; PI. CXVIII, Figs. 1. 2 



Plantago virginica I, 5li3 



Plaster BlulT, Ark., fossil plants from 332-3:« 



Platypterygiuni Balli Feistm 522 



densinervc Foul.'.' . 521-522, .V23..V.>r,.:)S6; I'l, CXII, Fig.8 

 Kogersianum Font 523 



I'leurocielu 



392 



Plum Creek. Md., fossil plants from 572 



Podozamites Frieririch Braiui 10.8-112. lli.Vlt;7 



ilLilaiishd{h'iiiii [fr. Br.) Schinip 112 



ilistans minor (Schenk) Schiiu|i HI 



distantincrvis Font 1**5-166, 



17:i-174. 2S1, 479. .510. .573, .5.S(i 



Emmonsii Neu 1. 202 



grand ifolius Font 166. 



167. 17.5-174,202.2.5.5. 281.. '180; I'l. XLl V, Fig. I 



lanceolatus 1 1,. A H.) Fr. Br 110-111, 



140, M;!, 202; I'l. XXIV, Figs. 17-20 



lanceolatus Kichwaldi (^^cllimp.) Heer 143,166 



Iitncrolal as genuiinis Heer 110,142 



lanceolatus latifolius (Fr. Br.) Heer Hi, 



140, 142, 143, Ui6, 202; PI. XXV, Figs. .5-7 



lanceolatus minor ( Schenk ) Heer Ill, 



140. 142, 150; PI. XXV, Fig.s. 1-4 



lutipeunix Heer ll'>5, 172, 281 



minor (Schenk) Heer?... 150; I'l. XXXVIII. Figs. 11, 12 



nervosa Newb 281 



obtusifiilius Hccr 110 



pachynervisFont Hi, 140; I'l. XXV, Fig.8 



pachyphyllus Font.. 109-II0, 140; PI. XXIV, Figs. Il-IH 



pedicellatus Font .52.S. 532, .580; Pl.CXIV.Fig.l 



pulchellus Heer.. lOS-lOit. 140. 143; I'l. XXIV, Figs. 1-10 



Pohick Creek. Va., fossils from 487 



Pollard, Charles Louis, fossil plants collected by 491 



I'olyiiodiaceai' 03-83. 1.55-165. 22.5-229. 2;il-298 



Pdliipinlilrf undaus ( L. it H. ) Giipp 69 



Poly podium Linua-ns 63 



oregonense Font 63-66, 140; 



PI. VIII. Figs. 12-15; I'l. IX; PI. X. Figs. 1-7 



PolystichUes Mumiijana ( Brongn. ) Presl 62 



Poplar Point. Md., fossil plants from 573, 583-589 



Populophyllum menispermoides Ward 491 , 



4!)S-4!m, ,5,86; PI. ex. Figs. 2-4 



minutum Wani 491,49it, 



.528.53-.', ,'>.S6; PI. CVII, Fig. 9; PI. CXIV, Fig. 1 



reniforme Font 499 



I'o|>ulus Linna'tis 266,508,669 



auriculata Ward 491, 4!W-5(IO, 686; PI.CX, Fig.5 



potomaceusis Ward? 491, 499, 500, 632, .586, ,598 



? Ricei Font 2.51. 266; PI. LXIX. Fig. 10 



Porocystis pruuiformis Crag 336 



Port Orford quadrangle, fossils from 146 



Potamogetopliyllnm Fontaine 500-501 



vernonen.se Font 491,500-501,586; PI. CIX,Fig.7 



Potomac beds, fossil plants from 167, 361 , 362 



Potomac Creek, section on 377 



Potomac formation, age of .. 357,363,367-369,393,400-401,576 



character of 3.56, 363, S77-379, 383-386 



columnar section of 597-599 



diagram showing 598 



correlation of 368, 580-599 



division of 575 



extent of 344 



fossils of 342-599; Pis. LXXXI-CXIX 



