THE DESCRIPTION AND STRATIGRAPHIC RELATIONSHIPS. 421 



Cordaianthus sp. 



PL IX, fig. 8. 



A plant probably belonging to the genus Cordaianthus was found in the 

 shales overlying the Upper Block Coal at Baird's mine. The specimen was so 

 poorly preserved that specific determination was uncertain. 



GYMNOSPERMS 



Cordaitales 



Genus Cordaites Unger 



CordaUes Robbii Daw 



PI. VII, fig. 9. 



1861. Cordaites Robbii. Dawson, Canad. Nat., Vol. G, p. 168. 

 1886-1888. Cordaites brassifolius Sternb. Zeiller, Bassin Houiller de Va- 

 lenciennes, p. 62.5, pi. XCII, figs. 1-6. 

 1900. Cordaites Robbii Daw. White, Foss. Flora Pottsville Form., p. 



903. 

 1914. Cordaites Robbii Daw. Stopes, The "Fern Ledges" Garb. Flora of 

 St. John, New Brunswick, p. 82, pi. XIX, fig. 50, and text fig. 16. 

 The specimen illustrated in pi. VII, fig. 9, is from Bowling Green. It 

 seems to agree closely with forms previously dessribed as C. brassifolius.^''' 

 It is also close to, if not the same as C. communis although the nervation is 

 more regular than in the Missouri'" forms of that species. It is very likely 

 the same form deseril^ed by Stopes as occuring in the Pennsylvanian of New 

 Brunswick.'* The very fine veins alternating with the coarser ones are not 

 well shown in the figure. They are apparent, however, in a small area near 

 the end of the arrow. 



Localities: Yoho School, Bowling Green, Roadman School and Bird's 

 mine (?). The species was common in the two first named localities. 



Genus Canliocarpon Brongniart 

 Cardiocarpon nnnulalum Newb. 



Plate V, fig. 10; Plate VIII, fig. 4. 



.? Cardiocarpon annulatum. Newberry. Ann. Sc. of Clevel., 1. e. 



1873. Cardiocarpon. aiiindalinn Newb. Geol. Surv. Ohio, Vol. I, p. 374, pi. 



43, Figs. 8-8a. 

 1879. Cardiocarpus annulatus. Lesquereux, Coal Flora, Atlas, PI. LXXXV, 

 Figs. 36, 37, text (1880), p. 564. 

 Examples of this species from the Yoko School locality seem to agree in 

 all respects with the forms described by NewbeiTy from the shale over Coal 



1^ Compart figures in Zeiller's worlvs listed in above Synonoray. 

 " See discussion of tills species in White s i aper above ciueu. 

 '8 See Memoir of Stopes above cited. 



