68 PP. REPORT OF PROGRESS. FONTAINE & WHITE. 



into the upper beds, and is much less abundant at other lo- 

 calities, in the Waynesburg Coal. 



Pecopteris PlucTceneti, Brongt. var. const'ricia. PI. XXI, 

 Fig. 3. 



Fig. 3, PL XXI, rex)resents a species of Pecopteris which 

 has many of the features of P. Pluckenetl, and yet differs 

 from it in some important points. The general shape of the 

 pinnules is different, since it is cut away or constricted at 

 the base, which, being a constant feature, may determine 

 the varietal name. The nerves also are different from those 

 of Pluckeneti proper, since they branch more, and are 

 more sharply defined and distinct from the parenchyma of 

 the pinnule. It is possible that this maj^ represent an en- 

 tirely new species, and should it so prove, after the collec- 

 tion and examination of more and better material, it might 

 then bear the name Pecopteris constricta. It occurs with 

 P. pluckeneti in the roof-shales of the Waynesburg Coal, 

 at West Union, Doddridge Co. 



Pecopteris notata^ Lesqx. 



At the horizon of the Redstone Coal, near Wheeling, W. 

 Va., we find a very beautiful little plant, which in the form 

 of its pinnules, and in its nervation, cannot be distinguished 

 from P. notata^ as given by Prof. Lesquereux, in the " Geol. 

 of Penn.," Vol. II, Part 2, PI. XVIII, Fig. 4. It lacks the 

 point-like dots which distinguish the plant of Lesquereux. 

 This may however not be of specific value, since our plant 

 resembles it so much in other respects. 



Pecopteris Germari, (Weiss,) F. and W. PI. XIX, Figs. 

 1-7. 



Under the head of Cyatheites Pluckeneti, Weiss, in his 

 excellent work on the "Fossile Flor. d. jiin. Stein-kohlen- 

 formation u. des Rothliegenden," describes a sub-species, 

 Cyatheites Germari, and gives for it the following charac- 

 ters by which it is separated from Cyatheites Pluckeneti. 

 "Pinnules pinnate! y parted, smoothe, contracted at the base ; 



