410 PROCEEDINGS OF THE INDIANA ACADEMY OF SCIENCE. 



Notes on the Previously Known Species and 



Descriptions of New Species from the Lower 



Pennsylvanian Rocks of Indiana. 



EQUISETALES. 



Genus CalamUes Siiekow. 

 Calamiles Siickowi Brongn 



Plate VIII, fig. 8. 



1828. CalamUes Suckowi, Brongniart, Hist. veg. foss., p. 124, pi. XIV, fig. 6; 



pi. XV, figs. 1-6; pi. XVI. 

 1886. Catamites Suckowi Brongn. Zeiller, Bassin houil. de Valenc, Atlas, 



PI. LV, fig. 1. Text (1888), pp. 333-338. 

 1914. Catamites Suckowi Brongn. Stopes, M. C, The "Fern Ledges" 



Carboniferous Flora of St. John, New Bruns\\-iek. Memoir 41, 



Canadian Geol. Survey, PI. II, pp. 15-16. 

 The specimens in hand seem to agree closely with forms previously 

 assigned to tliis species. The form figured is from the Liberty School lo- 

 calitj' and seems to have ribs a little less in width than the forms from New 

 Brunswick^ and Europe. ^ Representatives of this species were also found 

 at the Cincinnati locality. 



SPHENOPHYLLALES 



Genus Sphenophyttum Brongniart 

 Sphenophyttum tenue D. W. 



Plate I, Fig. 1 



1900. Spenophyllum tenue White, David, The Stratigraphic Succession of 

 the Fossil Flora of the Southern Anthracite Coal Field, Pennsylvania, 

 U. S. G. S., 20th Ann. Hep. Part 11, pp. 900-901. PI. CXCl, Figs. 0-7. 



The stems, so far as could be determined, were rather slender and mod- 

 erately well ribbed. The leaves were eight millimeters to one centimeter 

 in width and al)out one and one-half centimeters in lengtli, crenulatc-denti- 

 culate. l)roadly cuneate. usually slightly rounded at the apex, semi-transluc- 

 ent, with slender, elongated bases. The single primary nerve is prominent 

 for some distance upwards from the base, forks four to six times at a narrow 

 angle, thus providing a nervule for each tooth. 



The specimens in hand seem to agree rather closely with the forms des- 

 cribed from the type locality.' They api)ear to differ somewhat in that the 

 leaves are a little shorter in the narrow l)asyl part, are slightly more cuneate, 

 and have hea\ier lamina. The latter difference can well be due to the large 



' .Stopes' paper above cited. 

 ' Zeiller's work.s al)ove cited. 

 » White, cited above. 



