INDEX. 



375 



H. 



Page. 



Hedericpbyllura 223-223 



creuulatum 324 



angiilatam 324 



Hynicna>aL 320 



Virginiengia 320 



J. 



JusUunliphyUiini 315 



iulij;rifoliuin 315 



K. 



Kanki'V's (plant lucahty) cU-scribcd 21.22 



L. 



Laricopsia 232-234 



longilolia 233 



aiigustifolia 233 



bicvifolia 234 



Leptostrobus Ileer 227-232 



lon^ifolius 228 



I'oliosus 2.10 



? miiltinoras 230 



8ted» 231,232 



M. 



Macroaporest sp 274 



MoGee, W J, proposed Potomac aa tbo naiiio of a 



^eolo;£ical group 1,34 



traced Potomac formation to head of Cheaapeake 



Bay 25,58 



Mi'fk, F. B.,fos8il plants found at Baltimore by 4 



Meui.spermitea Lesq 321,322 



Virginiensis 321 



tcnuiuervia 322 



MyricaL 310 



lirookensia 310 



Myrica-pbyllum 315,316 



deutatam 316 



N. 



Nageiupsis 194-203 



longifolia 195 



zaniioides - 196 



recurvata 197 



craaaicaulia 198 



latlfolia 19S 



decresceua 199 



ovata 199 



obtusifolia 200 



inatiiuilatt-ralis 200 



acuminata 201 



beterophylla 201 



micropbylla 201 



angustifolia 202 



aubfalcata 203 



Xowbcrry, J. S., acknowledgements to 4,33 



O. 



Osmunda L 145 



spbenopteroidcs 145 



Sicksouioides 146 



Tar. latipcnnia 147 



P. 



Page. 



Pecopteris Brongn 81-89 



Virginiensis 82 



atrictiuervis 84 



ovatodeotata 85 



micrudouta 85 



constricta 86 



breripenuis 80 



socialis 87 



anguatipeuuis 87 



Bruwuiana 88 



pacbypbylla 88 



Pbaui'ruL;ama 166-325 



PbylUtcs Brongn 325 



])acbypbyllua 325 



Pbyllocladopsia 204 



. lu'tcropbylla 204 



Plant lucalities described 10-33 



Platanopliyllum 316 



craasinorvo 316 



Platypterigium 168-171 



densincrve 169 



Uogersiauum 171 



Podozamitos Fr. Braun emend 178-181 



Bubfalcatua 179 



diatautincrris 179 



pedieellatus 180 



grandifoliaa 180 



acutifolius 181 



PoUeu sacs J 272 



PolypodinmL 104,105 



fadyenoides 104 



dentatum 105 



Populopkyllum 311,312 



reuiforme 311 



liedenvforme -. 311 



crassincrve 312 



Potomac fossil plants, list of 326-331 



Potomao proposed by "W J McGeo as name of a geo- 

 logical group 1, 34 



Potomac Uun (plant locality) described 17, 18 



Proteiepliylluni 231-287 



nuifornie ; 282 



orbiculai-e 283 



sp. f 284 



oblongifolium 284 



ovatuni 285 



ellipticum 285 



tenuinervo - 286 



dentatum 286 



Q- 



Quorcopbylhim 307,308 



prosaedentatum 307 



teuuinerre 308 



B. 



Eogera, AVilliam B., cited on geological relations, 1, 4, 6, 33, 34, 



35, 49, 52 



Rogersia 287,288 



longifolia 287 



anguatifoUa 288 



