THE FOSSIL FLORA OF THE SOUTH WALES COAL FIELD. 595 



Middle Coal Measures (White Ash Series). 



Locality. — Kisca, Monmouth. 



Horizon. — Black Vein (9 Feet). 

 Locality. — Cwm Avon, near Port Talbot. 



Horizon. — (?). 

 Locality. — Beaufort. 



Horizon. — (?). 

 Locality. — Merthyr Tydvil. 



Horizon. — (?) (Type of A. urophylla). 



Alethopteris decurrens, Artis, sp. 



Filicites decurrens, Artis, Antedil. Phyt., pi. xxi., 1825. 



Alethopteris decurrens, Zeiller, Flore foss. d. bassin liouil. d. Valen., p. 221, pi. xxxiv., figs. 2-3, pi. xxxv. 

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

 * Alethopteris decurrens, Kidston, Trans. Roy. Soc. Edin., vol. xxxvii. p. 331. 



Middle Coal Measures (White Ash Series). 



Locality. — Bwllfa Dare Colliery, Aberclare. 



Horizon. — 9 Foot Seam. 

 Locality. — British Iron Company, Abersychan. 



Horizon. — (?). 

 Locality. — Beaufort. 



Horizon. — (?). 



Alethopteris Davreuxi, Brongt., sp. 



Pecopteris Davreuxi, Brongt., Prodrome, p. 57 (Excl. syn.), 1828. 



Pecopteris Davreuxi, Brongt., Hist. d. veget. foss., p. 279, pi. lxxxviii. figs. 1-2. 



Pecopteris Davreuxi, Sauveur, Veget. foss. terr. houil. Belgique, pi. xlii. figs. 2-3. 



Alethopteris Davreuxi, Gopp., Syst. fil. foss., p. 295 (Excl. syn.). 



Alethopteris Davreuxi, Zeiller, Flore foss. d. bassin houil. d. Valen., p. 228, pi. xxxii. fig. 1. 



Alethopteris Davreuxi, Kidston, Trans. Roy. Soc. Edin., vol. xxxiii. p. 386, pi. xxiv. fig. 1. 



Pecopteris Dournaisii, Brongt., Hist. d. veget. foss., p. 282, pi. lxxxix. fig. 1 (? not fig. 2). 



Alethopteris Dournaisii, Gopp., Syst. fil. foss., p. 298 (Excl. syn.). 



Pecopteris Hoffmanni, Sauveur, Veget. foss. terr. houil. Belgique, pi. xxxvii. fig. 1. 

 (?) Pecopteris rugosa, Sauveur, Veget. foss. terr. houil. Belgique, pi. xxxvii. fig. 2. 



Alethopteris Rungi, Acheponl, Niederrh. Westfdl. Steink., p. 135, pi. xli. fig. 10. 

 (?) Alethopteris interrupta, Achepohl, Niederrh. Westfdl. Steink, p. 136, pi. xli. fig. 13. 



Middle Coal Measures (White Ash Series). 



Locality. — Bwllfa Dare Colliery, Aberdare. 

 Horizon. — 9 Foot Seam. 



