Peco. 



604 



Pecopteris arborescens. Schlot. Lesq. Coal Flora, p. 230, 

 pi. 41, figs. 6 to 7 J. Collected by White from base of the 

 Powelton shales (over Cook bed) at Ocean mine and old mine 

 near Barnetfs Shoups Kun, Broad Top, Huntingdon Co., Pa. 

 T3, p. 62. ; 



Pecopteris chaerophylloides, Brgt. found at Darlington, 

 Pa. XIIL 



Pecopteris conci7ino . Lesq. Preoccupied by Presl. and iden- 

 tical with — 



Pecopteris decurrens. Lesq. represented in Geol. Pa., 



// a Ruopleii. j.- y, ^ 

 dec I Lire US L' ■■ ^-^ ' ■♦ ' '^ ' • 



ITTJSSV 



3. Pecopteris ci)neuiti& 



1858, page 867, plate XI, by fig. 5, and fig. 5 a, a slab of slate 

 from the roof of the Gate Vein at Pottsville ; — P, concinna^ a 

 fine species difi'ering from P. abbreviata by leaflet, and from 

 P, angustissima by nervation ; — P, decurrens^ a species so 

 remarkable as to be valid for the type of a peculiar genus. 



