MESOZOIO PLANTS OF NORTH CAROLINA. 109 



Equisetum columnare. 

 " This plant occurs in the Deep River formation, in obscurely marked specimens, in 

 the thin-bedded gray sandstones at Ellington's, considerably above the blue slate." 



This plant seems to be the same with Equisetum Bogersi, from the 



Virginia Mesozoic, and as it is a poor specimen and does not show any new 



features, I have not reproduced Emmons's figure. 



• Calamites arenaceus. 



Emmons gives two figures, 77 and 78, of this fossil. As they represent 

 the internal casts of E. Bogersi and show nothing new, I do not reproduce 

 the figures. Emmons states that one specimen from the base of the stem 

 was 4 inches in diameter. 



Calamites disjuuctus. 



Emmons gives a figure of this internal cast on plate 4, fig. 4. It shows 

 no characters that suffice to distinguish it as a new species, but may belong to 

 Rogers's Calamites planicostatus, which appears to be a cast of a Schizoneura. 



Echinocarpus. 



Emmons gives a figure of a woody branching stem apparently, which 

 he thinks is a dry seed vessel. It is merely a nondescript branching frag- 

 ment, which has no characters that appear to be significant of anything but 

 a branching stem. 



Pachypteris. 



Plate LI, Fig. 5. 

 Emmons's "Araer. Geol.," p. 112, fig. 80. 



" Frond scarcely pinnate, leaves coriaceous, one-nerved, diminishing in width 



towards tbe base; long, oval, obtuse. The stem is strong, and the leaves should be 



regarded, perhaps, as alternating with one another. No side veins are discoverable, 



and the preserved leaflets appear distinctly coriaceous, with a single midrib." 



The locality and horizon of this plant are not given. It is evidently not 

 a Pachypteris, but is a conifer. It is apparently a Palissya with an un- 

 usually strong midrib. The remoteness of the leaves is no doubt due to 

 the fact that many of them have been removed by the accidents that have 

 befallen the specimen. It might bear the name Palissya Carolinensis. 



Cycadites acutus. 

 Plate LI, Fig. 3. 

 Emmons's "Araer. Geol.,'' p. 114, tig. 81. 



"Petiole strong, striate; leaves thick, narrow, rigid, acute, margins either revo- 

 lute or thickened. This plant has leaves about 2 inches long, which spread nearly at 

 right angles to the petiole. It occurs at Lockville, in the blue non-bituminous slate." 



