THE FOSSIL FLORA OF THE SOUTH WALES COAL FIELD. 585 



StacJiannularia tuberculata, Weiss, Steinkohlen Calamarien, vol. i. p. 17, pi. i. figs. 2-4, pi. ii. figs. 1-3, 5 



(left-hand fig.), pi. iii. figs. 3-10, 12. 

 Stachannularia tuberculata, Weiss, Aus. d. Steink., p. 11, pi. ix. fig. 50 (2nd Ed.), 1882. 

 Calamostaehys tuberculata, Weiss, Steinkohl. Calamar, vol. ii. p. 178. 

 Scheuchzer, Herb, cliluv., pi. ii. fig. 6, 1709 (1st Ed.), 1723 (2nd Ed.). 



Transition Series (Lower Pennant Series). 



Locality. — Cwmbwrla, Swansea. 



Horizon. — Hughes' Vein. 

 Locality. — Penrhiwfer Colliery, Pontypridd. 



Horizon. — No. 2 Rhondda Seam. 



Filicacese. 

 Sphenopteris, Brongt. 

 Sphenopteris obtusiloba, Brongt. 



Sphenopteris obtusiloba, Brongt., Hist. d. veget. foss., p. 204, pi. liii. fig. 2*. 

 *Sphenopteris obtusiloba, Kidston, Trans. Boy. Soe. Edin., vol. xxxvii. p. 321, pi. i. fig. 1. 



Middle Coal Measures (White Ash Series). 



Locality. — Bwllfa Dare Colliery, Aberdare. 

 Horizon. — 2 Foot 9 Inch Coal. 



Sphenopteris trifoliolata, Artis, sp. 



Filicites trifoliolata, Artis, Antedil. Phyt., pi. xi. 



Sphenopteris trifoliolata, Brongt., Prodrome, p. 51. 



Sphenopteris trifoliolata, Kidston, Trans. Roy. Soc. Edin., vol. xxxv. pp. 403-5. 



Middle Coal Measures (White Ash Series). 



Locality. — Beaufort. 



Horizon. — Above 2 Feet 9 Inch Coal. 



Sphenopteris dilatata, L. and H. 



Sphenopteris dilatata, L. and H., Fossil Flora, vol. i. pi. xlvii. 



Sphenopteris Hbninghausii, Salter [not Brongt.), Mem. Geol. Survey Gt. Brit, and Mus. Practical Geol. 

 Iron Ores of Gt. Brit., part iii. Iron Ores of South Wales, 1861, p. 232, fig. 2. 



Remarks. — I have lately met with several specimens of what appears to me to be 

 the true Sphenopteris dilatata, L. and H. The British Museum possesses one from 

 Coseley, near Dudley (Johnson Collection). Mr Sharman, Museum of Practical 

 Geology, London, has shown me another, labelled as coming from Wrexham, which 



