FLORA OF THE DAKOTA GROUP. 



93 



TABLE OF DISTRIBUTION OF THE PLANTS OF THE CRETACEOUS CENOMANIAN 



FORMATION. 



:t 

 4 

 "> 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 33 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 3U 

 31 

 32 

 33 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 42 



NAMES OF SPECIES. 



URYFTOGAMKjB. 1 



EquisttCK. 



Equisetum nodosum, 1.x 



Equisetum amissum, Hr 



I-'iUces. 



Sphenopteris eorrugata, Ny 



Hymenophyllum eretaoeum.Lx . 



Cyathea fertilis, Hr 



Cyathea Hammeri, Hr 



Dicksonia Grceulandica, Hr 



Dieksonia borealis, Hr 



Dicksonia conferta, Hr 



Dicksonia punctata, Hr 



Pteris 1'rigida, Hr 



Pteris longipennis, Hr 



Pteris .' Albertsii, Dkr 



Pecoptcris lobifolia, Corda 



Pecopteris arctica, Hr 



Pecoptcris striata, St 



Pecopteris argutula, St 



Pecopteris linearis, St 



Pecopteris borealis, Brgt 



Pecopteris Pt'afflana, Hr 



Pecopteris Heichiana, Ett 



Pecopteris dcnticulata, Hr 



Pecopteris Bohemica, Corda 



Pecopteris Xebraskana, Hr 



Pecopteris socialis, Hr 



Aspidium ISeichianuni, St 



Aspidinm (Erstedi, Hr 



Aspidium fecundum, Hr 



Aspidium Scbouwii, Hr 



Aspidium Jenseni, Hr 



Phegopteris Jorgenseni, Hr 



Asplenium Dicksonianum, Hr. . . 



Asplenium l-'osteri, Deb 



Asplenium Nordstrjini, Hr 



Gleicbenia Giesekiana, Hr 



Gleichenia gracilis, Hr 



Gleicbenia aeutiloba, Hr 



Gleicbenia rigida, Hr 



Gleicbeuia Xauekhoffii, Ilr 



Gleichenia Kurriana, Hr 



Gleicbeuia Zippei, Hr 



Gleicbenia Xordenskioldi, Hr 



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1 1 omit in tbis table the Thallophytes represented by six species of fungi upon leaves of Niedersboena and of Atane, and the 

 •marine Zonarites found in connection with animal remains, especially mollusks, in strata overlying the Dakota Group. 



