MR ROBERT KIDSTON ON THE 



Pecopteris, Brongt. 

 Pecopteris arborescens, Schloth., sp. 



Filicites arborescens, Schloth., Flora d. Vorwelt, p. 41, pi. viii. figs. 13, 14. 

 Pecopteris arborescens, Brongt., Hist. d. veget. foss., p. 310, pis. cii. ciii., figs. 2, 3, 

 Pecopteris arborescens, Kidston, Trans. Roy. Soc. Edin., vol. xxxiii. p. 366.* 



Horizon : — At a depth of 33 G yards. 



Pecopteris unita, Brongt. 



Pecopteris unita, Brongt., Hist. d. veget. foss., p. 342, pi. cxvi. figs. 1-5. 



Pecopteris unita, Kidston, Trans. Roy. Soc. Edin., vol. xxxiii. p. 367, pi. xxiv. figs. 2-9.* 



Horizon : — At a depth of 336 yards. 



Pecopteris Miltoni, Artis, sp. 



Filicites Miltoni, Artis., Antedil. Pliyt., pi. xiv. 



Pecopteris Miltoni, Kidston, Trans. Roy. Soc. Edin., vol. xxxiii. p. 374.* 



Pecopteris abbreviata, Brongt., Hist. d. veget. foss., p. 337, pi. cxv. figs. 1-4. 



Horizon : — At a depth of 336 yards. 



Alethopteris, Sternb. 

 Alethopteris decurrens, Artis, sp. 



Filicites decurrens, Artis, Antedil. Phyt., pi. xxi. 



Alethopteris decurrens, Zeiller, Flore foss. du bassin houiller d. Valenciennes, pi. xxxiv. figs. 2, 3 ; pi. xxxv. 



fig. 1; pi. xxxvi. figs. 3, 4. 

 Pecopteris heterophylla, L. and H., Foss. Flora, vol. i. pi. xxxviii. 

 Pecopjteris Mantelli, Brongt., Hist. d. veget. foss., p. 278, pi. lxxxiii. figs. 3, 4. 



Remarks. — This is most probably only a variety of Alethopteris lonchitica, Schloth., 

 sp., with which I have previously united it. 



Horizon : — At a depth of 440 yards. 



Alethopteris aquilina, Schloth., sp. 



Filicites aquilina, Schloth., Flora d. Vorwelt, p. 38, pi. iv. fig. 7; pi. v. fig. 8. 

 Horizon : — At a depth of 336 yards. 



* Where remarks and further references will he found. 



