38 FOSSIL COAL PLANTS. 



93. A. grandifolia, (n. sp.) 

 Cuyahoga Falls. < 



94. A. gracilis, (n. sp.) 

 Cuyahoga Falls. 



PECOPTERIS — BRONG. 



95. P. plumosa, Brong., Op. ciU Tah. 121-122. 

 AletJiopteris plumosa^ Goepp. 



Splendid specimens of this species are found at Cuyahoga 

 Falls, where I have seen a single frond five feet long by two 

 and a half wide, spread out on the roof-stone of the coal 

 mine, as beautifully preserved and as perfectly expanded 

 as though it had been plucked when growing, and carefully 

 laid between the leaves of a lady's herbarium. 



96. P. nervosa? Brong., Op. cit, Tah. 94. 

 AletJiopteris nervosa., Goepp- 



Tlie specimens which I have doubtfully referred to this 

 species do not agree at all with Brongniart's figure, nor 

 very well with Lindley's, (L. & H., Tab. 94.) Our plant is 

 considerably larger, and the pinnae and pinnules near the 

 summit of the frond are prolonged into spines ; fructification 

 preserved; sori (5-8,) about half way between the midrib 

 and margin of the pinnule, apparently covered by a peltate 

 indusium; sporangia few; sori resembling those of Matonia. 

 Salineville. 

 97. P. Sillimanii, Brong., Op. cit-, Tah. 96. 



Zanesville. 



98. P. arborescens, Brong., Op. cit., Tah. 101. 

 Cy atheites arhorescens., Goepp. 



Salineville. 



99. P. Cyathea, Brong. Loc cit. 

 Oyatheites Sclilot7ieimii^ Goepp. 



100. P. elliptica, Bunbury, Jour. Geol. Soc. Vol. 11.,^. 82. 



Zanesville. 



