1887.] PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 25 



of the pinnules are smaller and narrower. As no fragment represents 

 an entire pinna, the identification cannot be positive. 



The nature of the anthracite shale in which these plants are pre- 

 served makes it seem improbable that they came from Colorado. The 

 material resembles that from St. John, Canada ; Museum number, 2197; 

 lot number, 213. 



36. Neueropteris Smitliii Lx. 



Warrior Creek, Jefferson County, Ala.; Frank Burns, collector; two 

 specimeus; Museum numbers, 2174, 2178; lot number, 223. 



37. Callipteris pilosa (?) Daws. 



Crested Butte, Gunnison County, Colo.(?); George H. Eklridge, col- 

 lector; one specimen. 



From the description of the auth*or [Foss. PI. of tiie Devonian, p. 51, 

 PI. XVI, fig. 189] we learn that the frond is covered with numerous mi- 

 croscopic hairs, masking the nervation. The form and division of the 

 pinnae and pinnules agree better with the figures than with the descrip- 

 tion of the plant by the author. The pinnules are enlarged and decur- 

 rent, connate at base, thin ; nervation obsolete. 



From the general character of the plant it appears rather referable 

 to a Pecopteris than a Callipteris. 



According to Dawson the plant is from the Middle Devonian of St. 

 John. 



Museum number, 2390; lot number, 213. 



38. Triphyllopteris Lescuriaua Meek. 



Whetstone Hill, Ya. ; H. E. Geiger, collector; six specimens ; Museum 

 number, 2190; lot number, 218. 



PECOPTERIDE^. 



39. Pecopteris aiborescens Brongn. 



Locality and collector unknown ; two specimens ; Museum numbers, 

 2194, 2201. 



40. Pecopteris dentata Brougn. 



Saint Clair, Schuylkill County, Pa. ; received from George Powell ; 

 one specimen ; Museum number, 2197 ; lot number, 75. Deavertown, 

 Ohio; received from S. C. Gray; two specimens; Museum number, 

 2200 ; lot number, 73. 



41. Pecopteris Fontainii Ls. P. abbreviata, Brgt., olim. 1st Penn. Geol. IIc[)t., 



p. 867, etc. 

 Locality and collector unknown ; one specimen ; Museum number^ 

 2198 ; lot number, 70. 



42. Pecopteris serrulata Hart. 



Warrior Creek, Jefferson County, Ala. ; Frank Burns, collector ; one 

 specimen ; Museum number, 2191 ; lot number, 223. 



