312 PEOCEEDINGS 01" THE GEOIOQICAL SOCIETY. [May 7, 



20. Annulaeta acumhstata, sp. nov. PI. XIII. fig. 21. 



Leaves oblong, acuminate, one-nerved, 6 to 9 in a whorl, erect or slightly 

 spreading. Whorls usually found disconnected. 



Detached whorls of this species occur, though rarely, on the sur- 

 faces of the shales of Carlton. It seems to be a plant of the same 

 type with A. sphenophylloides, linger, which, according to Lesque- 

 reux, occurs in the Coal-formation of Pennsylvania. 



21. Sphenophtlltjm antiquum, Dawson. 



' Canad. Nat.' vol. vi. p. 170, fig. 7. 



" Leaflets cuneate, one-eighth of an inch wide at the apex, and less 

 than one-fourth of an inch long. Nerves three, bifurcating equally 

 near the base, the divisions terminating at the apices of six obtuse, 

 acuminate teeth. '^ About 8 leaves in a whorl. 



This plant was described from a few detached leaflets fi'om the 

 graphitic shale of St. John, which preserved their form and venation 

 iu' the most wonderful perfection, though they were completely 

 changed into films of shining graphite. I have since obtained from 

 Mr. Hartt a specimen found at Carlton, which, though the individual 

 leaflets are more indistinct, shows their general arrangement in whorls 

 of 8 or 9 on a slender stem. It is a beautifully symmetrical little 

 plant, quite distinct from any of the species in the Coal-measures. 



22. PiNNULARIA DISPALANS, Sp. UOV. PI. XIII. fig. 22. 



Smooth slender stems, producing nearly at right angles long branchlets, 

 some of which produce secondary branchlets in a pinnate manner. 

 Stem and branches having a slender vascular axis. 



This plant was not very dissimilar from some common forms of 

 Carboniferous Pinnularice. Its main stem must once have been 

 cylindrical, and had a delicate central axis, now marked by a darker 

 hue of graphite in the flattened specimens. The branches were not 

 given off in one plane, and also show traces of an axis. There are 

 indications that the stems grew in bundles or groups. It was pro- 

 bably, as has usually been supposed in the case of the species in the 

 Coal-formation, an aquatic root or submerged stem of an Astero- 

 phyllites or some similar plant. 



(Acrogenous Cryptogams.) 

 (Lycopodiacece.) 



23. Lepidodendeon Gaspianum, Dawson. PL XIV. figs. 2Q, 27, 28 ; 



and PI. XVII. fig. 58. 



Dawson, Quart. Journ. Geol. Soc. vol. xv. p. 483, figs. 3 a-3 d. 



This species, originally discovered in Gaspe, and described in my 

 paper* on the plants of that locality, was afterwards recognized 

 among the fossils from Perry, and more recently at St. John ; and 

 numerous and beautiful specimens are contained in Prof. Hall's 



* Quart. Journ. Greol. Soc. vol. xv. p. 483. . 



