12 PP. KEPORT OF PKOGRESS, FONTAINE & WHITE. 



Besides the above named, we find a small Archseopteris, 

 very near to Dawson's Cyclop teris Jacksoni ; a Cordaites, 

 allied to C. Robbii, Daws ; and fragments of what must 

 have been a very large leaf resembling a Tseniopteris. The 

 midrib of this is broad, and from it, closely placed, parallel 

 nerves pass at right angles. The facies of this plant re- 

 sembles closely TcBniopteris Smithii, Lesqx. from the 

 lower coal beds of Alabama, and also the genus Orthogon- 

 iopteris, of Andrews, founded on plants occurring in the 

 lower coal strata of Ohio. The above list does not assume 

 to be exhaustive of the plants found on New River, in the 

 Conglomerate. It may be stated here, as Megalopteris 

 Sewellensis has never been figured, that it is a plant near 

 Neuropteris (Megalopteris) Dawsoni, as given by Dawson, 

 but the leaflets are smaller, thicker, and not so acuminate 

 as in this plant. 



Alethopteris Helense, Neuropteris Smithiana, and Taeni- 

 opteris Smithii, are figured and described in Prof. Lesque- 

 reux's Report P on the " Coal Flora of Pennsylvania, &c." 

 1879. 



In Western Pennsylvania the most abundant plants of 

 this group are : 



Alethopteris lonchitica, Brt. 



A grandifolia, Newb. 



Neuropteris flexuosa, Brt. 



Besides these, numerous species of Lepidodendron, Sigil- 

 laria and Cordaites are found, with a great number of fruits 

 belonging to the Genera Trigonocarpus, Cardiocarpus, and 

 Rhabdocarpus. 



Professor Leo Lesquereux has given in "The Report of 

 Progress of the Geological Survey of Alabama," for 1875, a 

 list of plants sent to him from the coal field of Alabama, by 

 Dr. Smith, the chief of the Survey of that State. In this 

 there are many plants identical with those found in the 

 Conglomerate on New River, and some which occur only at 

 these two localities. Sphenopteris Hseninghausi, Brt., 

 Neuropteris Smithiana, Lesqx., and Alethopteris Helense, 

 Lesqx. are plants common to the two localities, and not 

 found elsewhere in the Appalachian Coal Field. Pecop- 



Pecopteris nervosa, Brt. 

 Sphenopteris macilenta, L. & H. 



