422 PROCEEDINGS OF THE INDIANA ACADEMY OF SCIENCE. 



No. 1 at Youngstown, Ohio.^'^ A form shown in PI. VIII, fig. 4, from the 

 Liberty School locality is doubtfully referred to this species. 



Locality: A few specimens were found at the Yoho School and Liberty 

 School localities. 



Cardiocarpon pachyteslum. Lx. 



Plate V, fig. 9. 



1879. Cardiocarpus pachylesta. L.x. Coal Flora, Part II, p. 5G5. 

 1884. Cardiocarpus pachytesta. Lx. Coal Flora, Part III, p. 809, pi. CIX, 

 figs. 13, 15. 



The examples of this species agree closely with the type forms included 

 by Lesquereux in his later description of the species.-" A slight difference 

 is noted in that the base of the nucleous does not appear to "continue down- 

 ward in a narrowly lanceolate acuminate appendage or axis of a pedicel." 

 This, however, may be due to the imjjerfect preservation of the specimens 

 in hand rather than a difference in structure. 



Locality: Yoho School. 



Cardiocarpon ficiiminalinn n. sp. 

 Plat(> IX, fig. 9. 



Fruit al)out 7 mm. wide, 9 mm. long, oval in out line; nucleus 4 mm. wide, 

 ") turn, long, truncate at l)ase and acutely pointed at apex; wings of uniform 

 width of al)out 1.5 mm., conforming to the shape of the nucleus, prolonged, 

 narrowed and close together at the apex. 



This form very likelj- belongs to a grouj) of small, wide-winged Cardiocar- 

 pon forms represented by C. lale-alalum.-^ 



Locality: Baird's Coal Mine. 



Cardiocarpon irregulare n. sn. 

 Plate X, figs. 7, 8a, 9 and 12. 



Fruit cordate to broadly oval in outline, about 5 mm. wide and 0.5 mm. 

 long; nucleus ovate, acutely pointed above, truncate with small depression 

 at base; wings about .5 mm. in width at base and increasing to about 1 mm. 

 in width at the apex and there emarginate. 



This species varies somewhat in shape, in size and in the width of the wings 

 at the base. The cordate shape is shown in figs. 7 and 9, pi. X, and the more 

 rounded form in figs. Sa and 12, pi. X. 



Locality: Very numerous in the fire clay under the I'pper Block Coal 

 at Asherville. 



J» Geol. Sur. Oliio. Pal., vol. 1. p. .374, 1873. 



21 Coal. Flora, 111. p. SO'l. 1SS4. 



" Coal Flora. Vol. 11. p. MS. PI. LXXXV. figs. 40. 4; 



