iqiq] BASSLER—SPORANGIOPHORIC LEPIDOPHYTE ioi 



Baltimore and Ohio Railroad, 430 ft. beneath that of the Davis seam (165 ft. 

 plus or minus beneath the top of the Pottsville), and while it is not prudent to 

 extend the range of this species upon the testimony of questionable material, I 

 shall make a record here awaiting further collection. 



Cantheliophonis pugiatus, n.sp. — This species is not far different 

 from the last, but as a rule it is larger, with a blade usually more 

 than 15 mm. in length, making an angle with the pedicel ranging 

 from 100° to 1 50°, but generally falling between 1 10° and 140°. The 

 keel is wider. We have figured a typical specimen of each of these 

 related species which will usually serve well to distinguish them, 

 but we must caution that certain small atypic forms of this species 

 might be confused with the last. — Fig. 27. 



The type material in the Lacoe Collection at the United States National 

 Museum has come from the Pottsville formation at Campbells Ledge near 

 Pittston, Luzerne County, Pennsylvania. 



Cantheliophorus waldenbergensis (Potonie). — This species 



has the general habit of C". novaculatus and C. rohustus, but the 



keel is distinctly different, showing great expansion from the heel, 



where it is very narrow, to the distal extremity of the pedicel, where 



it terminates rather abruptly. — Figs. 19-21. 



The type material has come from the Waldenberg series, equivalent in 

 general to our Lower Pottsville from Segen-Gottes-Tiefbau near Altwasser, 

 Lower Silesia. 



Cantheliophorus reparius (Nathorst). — This species may be 

 compared with C. suhidatns. but the beak is more prominent, the 

 sporangiophore relatively longer, and the keel narrower. The 

 sculpture on the surface of the sporangiophore of this species, 

 however, will alone serve to distinguish it. — ^Fig. 4. 



The type was collected by Norberg in 1913 from the Lower Carboniferous 

 at Orretelven, Spitzbergen. 



Cantheliophorus mirabilis (Nathorst). — This species has 

 the habit somewhat of C. linearifolius and C. grandis, but the 

 resemblance to these species is not close. One of the most dis- 

 tinctive features is the sharp differentiation of the fields of the 

 sporangiophore. — Figs. 22-24. 



The material upon which the species has been based was collected in 1913 

 by the Hoel-Straxrud Expedition from the Lower Carboniferous or Culm at 



