INDEX 



99 



Macnair, P., 29 

 Maine, 0, 13 



3IariojjJeris, 84 



Marwood Beds, 7 



MeduUosa, 78 



Meaapliyllous ancestry of Sphcno- 



psiida, 71 

 Mejiapliylly of Pteropsida, 78, 78 

 Mclobesia lichenoides, 39, 40 (Fiii. 



21) 

 M. membranacea, 40 (Fig. 21) 

 Mesozoic, 87 

 Microphylly, of Arthrofitigma, 72; of 



Conifcrae, 71 ; of Lycopsida, 73; 



of Psilotales, 87, 88; of Spheno- 



psida. 73 

 Miller, Hugh, 14 

 Mimers-Thal, 6 

 Murchison, R. I., 3 



Nathorst, A. G., 2, 3, 5, 13, 29, 37, 



43, 64 

 Ncuialioii, ;")() 

 Nemalopliycus, 8, 13, 89 

 Neuropteris, 84 

 New Brunswick, 6 

 New South Wales, 6, 13 

 New York State, G, 13 

 Newberry, J. S., 37 

 Newcastle coal field. .58 

 Nicholson, H. A., 75, 76 

 Nocggernthia hi f urea, 12 

 Norway, 2, 5, 6, 7, 12, 26, 29, 37, 



43, 44, 54, 56, 58 



Ohio, 13 



Old Ked Sandstone, classification in 



Scotland, 3-5; correlation with 



Devon facies, 4 

 Ordovician, 75, 76 

 Osteolepis, 4 



Pdclnjtlivcd, 8 

 Pal<i('<i/)lii/c>is gracilis, 12 

 Palacophyllales, 9, 10, 56-58, 78-84 

 Par!>a {lecipicNs, 2, 3, 8, 10, 11, 38, 



39 (Fig. 20), 40, 46, 47 

 Parkin, .T., 84 

 Pecopleris, 83 



Pecopteris plumosn, 83 (Fig. 47) 

 Penhallow, I). P., 14, 29, 30 

 Perieaulome, 70, 73, 77, 78, 86, 87, 



88 

 Permian, 69 



Permo-carboniferous, 58 

 Perry Basin (S.E. Maine), 6, 13 

 Phyllineae, 71 , 74 

 Phylloideae, 71, 74 

 Polysiphonia, 73, 78 



Portage group, 13 



Potonie, H., 12, 30, 35, 50, 70, 73, 



78, 84 



Poudingue de Burnot. 5, 7 



Primofilices, 71, 81, 84^85 



Procormo{)hyta, 1, 47, 49, 51, 76, 82 



Prohcpatics, 70, 71 



Prolycopods, 71 



Proj)teridophyta, 1 



Protannularia laxa, 75 (Fig. 41) 



P. radiata, 76 



Proiolepidodcndmn , 10, 12, 42, 85 



Protolepidodcndron knrlsteini, 42 



P. Scharyuiiuui, 12 



Psamniites du Condroz, 5, 7 



Pscudohornia, 9, 54 (Fig. 26), 56, 

 76, 77 



Pseudoboruia nrsitia, 12, 54 (Fig. 

 26) 



Pseudo-dichotomy of Palaeozoic Ly- 

 copods, 86 



Pseudosporochuus. 10, 12, 33 (Fig. 

 15), 34 (Fig. 16), 35, 17, 50. 81 



Pseudosporocluius Krejcii, 33 (Fis. 

 15), 34 (Fig. 16) 



Psilophytales, 47 



Psilnphytniu 5, 6, 8, 9, 10, 1 1, 12 13, 

 15 (Fig. 1), 16 (Fig. 2), 17 (Fig. 

 3), 18 (Fig. 4), 19 (Fig. 5), 20, 

 21 (Fig. 6), 22-25 (Fig. 7), 26, 

 37, 43, 44, 46, 47, 48, 49, 70, 71. 

 74, 76, 85, 86, 88, 89, 91 



Psilophyton Flora, adinities, 46-51; 

 distribution of clnef genera in 

 Devonian time, 9, 10; morpho- 

 logy and anatomy, 14—45; peri- 

 eaulome structure in, 78, 87. See 

 also 1, 2, 8, 9, 10, 11, 12 



Psilophyton Deehianum, 17 



P. elegans, 19, 20 



P. Goldschmidtii. 21 



P. ornaium, 11, 18, 22 



P. princeps, 10, 11, 17 (Fig. 3), 18 

 (Fig. 4), 19 (Fig. 5), 20, 21 

 (Fig. 6), 22, 24, 25 (Fig. 7), 46 



P. robusiius, 11, 19, 20 



Psilotales, 47, 86-88 



Psilotum, 49, 87, 88 



Psygmophyllum, 9, 10. 12. 13, 55 

 (Fig. 27), 56, 58, 78, 79 



Psygmophyllutn lirowniaimm, 13 



P. Kolderupi, 55 (Fig. 27) 



Pteraspis, 4 



Pterichthys, 4 



Pteridop'hyta, 1, 52, 71, 72, 89 



Pteridorachis, 43 



Pteridospermeae, 69, 72, 81, 85 



Pteropsida. 9, 10, 71, 72, 73, 77, 

 78-85, 87 



