DESCRIPTION" OF SPECIES. PP. 95 



Coal, some of them 8 inches long, and 6-8 inches wide, in- 

 dicating a form fully as large as the fine plant figured by 

 Von Rdhl in his Foss. Flor. von Westp., Tab. XVIII. 



Caulopteeis, Lind et Hut. 



Caulojoteris elliptica. Sp. nov., PL XXXV, Figs. 4 

 and 5. 



(Scars large, arranged in quincunx order, mostly ellipti- 

 cal in outline, but some api)roaching an oval form ; outer 

 surface of the bark ornamented by irregular pits, and 

 punctate elevations, perhaps from the inseition of aerial 

 rootlets.) 



Fig. 3 represents a single isolated scar which was found 

 unconnected with others. It x^ossesses a somewhat different 

 shape from those shown in Fig. 4, being oval, and it is 

 also somewhat larger; it may belong to a different species, 

 but as it has so much in common with those of Fig. 4, we 

 do not separate them. 



Habitat. — Roof-shales of the Waynesburg Coal, Cass- 

 ville, W. Va. 



Caulopteris gigantea. Sp. nov.,Pl. XXXVI, Fig. 1. 



(Caudex, rough, very large, and furrowed; cicatrice, very 

 large, broadl}^ ellii^tical, not confluent at the extremities; 

 vascular bundles, producing longitudinal furrows, and caus- 

 ing a roughened or broken appearance at the extremities of 

 the scars, or sometimes near their centers ; outer surface of 

 the bark, ornamented witli rounded pits and elevations 

 Fig. 5, PI. XXXV. 



This species is more closely allied with O. macrodiscus^ 

 Corda, than with any other hitherto described species; but 

 it differs from O. macrodiscus in the different shape and 

 larger size of the scars. Both have smooth bordering spaces 

 running around the scars like a frame. In our plant these 

 are seen to have on the outer surface the markings given in 

 Fig. 5. The smooth borders are apparently caused by im- 

 pressions of the inner side of the bark surrounding the 



