NO. 2154. TWO NEW TRIASSIC FOSSIL PLANTS— WHERRY. 329 



BRUNSWICKIA, new genus. 



Type of the genus. — The following new species: 



BRUNSWICKIA DUBIA, new species. 



Plate 30. 



Description. — Groups of elongate, striate leaves, diverging in a 

 plane, with the following detailed characters: Length, 6 cm. or more; 

 width, 1.5-2 mm.; rather thick and rigid; outline linear; nerves 5-8, 

 equidistant, parallel, somewhat unequal, though without definite 

 midrib; at base sheathing the stems, which are apparently branched, 

 and diverging so that they are ultimately separated by interspaces 

 of about their own width; in one specimen curving upward in a con- 

 ical mass 1 cm. high, from a structureless base. 



Type.— C&t. No. 34993, U.S.N.M. 



Localities. — Cut of Philadelphia & Reading Railway three-fourths 

 mile south of SeUersville station, Bucks County, Pennsylvania; also 

 along the same road thi'ee-fom-ths mile northeast of Coopersburg 

 station, Lehigh County, Pemisylvania. At the first fairly abundant, 

 and forming prominent yellow streaks in the black shale. 



Horizon. — Brunswick formation; the first locality hes approxi- 

 mately 2,800 feet above the base of the formation, the second 7,000 

 feet higher. This plant has of course no value in determining 

 whether the Brunswick is of uppermost Triassic or lowermost Juras- 

 sic age — a question which can only be decided by discovery of more 

 definitely determinable fossils therein. 



