CARBONIFEROUS. 157 



Lepidodendron longifolium, Brongniart. 



Lepidodendron longifolium. 

 Brongniart, Prodrome, p. 85. 

 Lesquereux, Coal Flora of Pennsyl. p. 373. 

 ? Lindley and Hutton, Foss. Flora, vol. iii. pi. clxi. 

 Schimper, Traite d. Paleont. Veget. vol. ii. p. 22. 

 Unger, Synop. Plant. Foss. p. 132. 

 Genera et Species, p. 260. 



Lycopodites longifolius. 

 Bronn, Deutschl. Petrefacten, p. 85. 

 Giebel, Index Palgeont. p. 682. 



Lepidodendron Sternbergii. 



Ettingshausen, Steinkf. v. Radnitz, p. 54, pi. xxvi. figs. 1, 2 ; pi. xxvii. 



and pi. xxviii. 

 Sternberg (in part), Vers. i. fasc. 1, p. 23, pi. iii. 



Sagenaria dichotoma. 



Geinitz (in part), Vers. d. Steinkf. in Sachsen, pi. iii., fig. 1. 



Remarks. The specimen which forms the subject of Lindley and Hutton's 

 plate clxi., named by them Lepidodendron longifolium, is, I think, more 

 probably referable to Sigillaria Brardii, Brongniart. The leaf -scars are very 

 much obscured by the foliage, and though I have carefully examined the 

 specimen, I am unable definitely to say whether this example should be 

 referred to Sigillaria Brardii or to Lepidodendron longifolium. 



The leaf -scars on the specimen from Shotts agree so closely with Ettings- 

 hausen's beautiful figures of Lepidodendron longifolium ( = Lepidodendron 

 Sternbergii, Ettingshausen), that I have placed it under that species. The 

 only specimens, however, which can with certainty be referred to Lepidoden- 

 dron longifolium are those which show the foliage as well as the leaf -scars, as 

 on the example in the Collection from Newcastle-on-Tyne. 



The difference between the foliage of Lepidodendron Sternbergii and Lepi- 

 dodendron longifolium is such that, notwithstanding the great similarity of 

 the leaf -scar, it is almost impossible to regard them as only representing 

 different states of the same species. 



Horizon. Coal Measures. 



Localities. British. Lanarkshire : Shott's Iron Works (Presented by 

 the British Association). Northumberland : New- 

 castle-on-Tyne. 



Lepidodendron serpentigerum, Kdnig. 



Lepidodendron serpentigerum. 



Konig, Icones Fossilium Sectiles, pi. xvi. fig. 195. 



Lepidodendron cheilalceum. 



Wood, Trans. Amer. Phil. Soc. vol. xiii. p. 346, pi. ix. fig. 4. 



Lepidodendron distans. 



Lesquereux,- Coal Flora of Pennsyl. p. 387, pi. xliv. fig. 10. 



Geol. of Pennsyl. vol. ii. p. 874, pi. xvi. fig. 5. 



Boston Journ. Nat. Hist. vol. vi. p. 429. 



Schimper, Traite d. Paleont. V%et. vol. ii. p. 27. 



Lepidodendron oculatum. 



Lesquereux, Geol. of Pennsyl. vol. ii. p. 874, pi. xvi. fig. 4. 

 Boston Journ. Nat. Hist. vol. vi. p. 428. 



Horizon. Coal Measures. 



Locality. British. Northumberland : Newcastle-on-Tyne. 



