CARBONIFEROUS. 195 



Rhytidolepis cordata. 



Sternberg, Vers. i. fasc. 4, p. xxiii. 

 Rhytidolepis dubia. 



Sternberg, Vers. i. fasc. 4, p. xxiii. pi. xxxi. fig. 1. 

 Palmacites sulcatus. 



Schlotheim, Petrefactenkunde, p. 396, pi. xvi. fig. 1. 

 Syringodendron sulcatum. 



Sternberg, Vers. i. fasc. 4, p. xxiv. 

 Palmacites canaliculatm. 



Schlotheim, Petrefactenkunde, p. 396, pi. xvi. fig. 2. 

 Sigillaria parallela. 



'linger, Neues Jahrbuch, 1842, p. 609. 

 Syuop. Plant. Foss. p. 127. 

 Genera et Species, p. 250. 

 Sigillaria pulchella. 



Eoehl, Foss. Flora d. Steink. Form. Westph. p. 117. 



Romer, Palaeontographica, vol. ix. p. 41. 

 Syringodendron pulchellum. 



Sternberg, Vers. i. fasc. 4, p. xxiv. pi. lii. fig. 2. 



Remarks. In the decorticated condition it is often very difficult to sepai'ate 

 this species from Sigillaria Iceeijata. 



Gb'ppert mentions the occurrence of a stem of Sigillaria alternans, which 

 was fully 5 feet in diameter and 15 feet in circumference. Another in the 

 K. Mineralogischen Museum at Dresden measures 12 feet in circumference.* 

 Horizon. Coal Measures. 

 Localities. British. Somersetshire : Radstock. 



Forma. Sigillaria cateaulata : 



Durham : Sunderland. Northumberland : New- 

 castle-on-Tyne. Wales (South) : Ebbw Vale, near 

 Merthyr-Tydvil. 



Other decorticated conditions : 



Durham : Jarrow Colliery. Northumberland : 

 Newcastle-on-Tyne. Worcestershire : Dudley. 

 Foreign. Silesia : Waldenburg. Westphalia : Buer ; Steele. 



Sigillaria elongata, Brongniart. 



Sigillaria elongata. 



Andrae, Jahrb. d. Naturw. Vereines, Halle, 1850, p. 124. 

 Boulay, Terr. Houil. du Nord. de la France, p. 45. 

 Brongniart, Prodrome, p. 64. 



Ann. d. Sciences Nat. vol. iv. p. 33, pi. ii. figs. 3, 4. 



Hist. d. Veget. Foss. p. 473, pi. cxlv. and pi. cxlvi. fig. 2. 



Bronn, Index Palseont. p. 1144. 



Buubury, Quart. Journ. Geol. Soc. vol. iii. 1847, p. 432. 

 Dawson, Acadian Geol. 2nd ed. 1868, p. 475. 



Quart. Journ. Geol. Soc. vol. xxii. p. 147. 

 Canadian Nat. vol. viii. p. 435. 

 Foss. Plants of Lower Carb. Canada, p. 35. 

 Feistmantel, Steinkohl. u. Perm.-Ablager. p. 99. 



Vers. d. Bohm. Kohlenab. p. 243, pi. liv. fig. 2. 

 Giebel, Deutschl. Petrefacten, p. 77. 



Goldenberg, Flora Sarsep. Foss. heft ii. p. 46, pi. viii. figs. 23-25. 

 Lesquereux, Geol. of Pennsyl, vol. ii. p. 873. 

 Roehl, Foss. Flora d. Steink. Form. Westph. p. 108, pi. xxx. fig. 1. 



* Xeues Jahrbuch, 1864, p. 615. 



