156 FOSSIL PLANTS. 



Lepidodendron imbricatum. 



Sauveur, Ve"ge"t. Foss. de la Belgique, pi. Ixii. fig. 2. 



Schupperpftanze. 



Ehode, Beitr. z. Pflanzen. d. Vorwelt, pp. 8, 9, pi. i. figs. 5, 6. 



/ Rhytidophloyos tennis. 



Corda, Flora d. Vorwelt, p. 30, pi. ix. fig. 20. 

 Schimper, Trait6 d. Paleont. Veget. vol. ii. p. 57. 



Remarks. Lepidodendron Pagenstecheri, Rb'mer, does not seem to differ in 



any way from Lepidodendron aculeatum. Aphyllum asperum, Artis (Anted. 

 Phytol. pi. xxiii.), is only a badly preserved specimen of this species. To 

 this plant also are most probably to be referred as imperfectly preserved 

 conditions 



Aphyllum cristatum, Artis, Anted. Phytol. pi. xvi. 



Sigillaria appendiculata, Brongniart, Hist. d. V6get. Foss. p. 420, pi. cxli. 



fig. 2. 



Lepidodendron appendiculatum, Sternberg, Vers. i. fasc. 3, p. 38, pi. xxviii. 

 Caulopteris appendiculata, linger, Genera et Species, p. 197. 

 Lepidodendron codatum, Brongniart, is here placed under Lepidodendron 

 aculeatum, there being no characters by which it can be satisfactorily distin- 

 guished from that species. 

 ' Horizon. Coal Measures. 



Localities. British. Lanarkshire : Monkland, near Airdrie ; Shotts. 

 Northumberland : Newcastle-on-Tyne. Somerset- 

 shire : Bedminster, Bristol. Worcestershire : 

 Bewdley ; Forest of Wyre. Yorkshire : Bank- 

 top. Wales (South) : Ebbw Vale, near Merthyr- 

 Tydvil. 

 Foreign. Silesia : Waldenburg. 



Lepidodendron modulatum, Lesquereux. 



Lepidodendron modulatum. 



Lesquereux, Geol. of Pennsyl. vol. ii. p. 874, pi. xv. fig. 1. 



Coal Flora of Pennsyl. p. 385, pi. Ixiv. figs. 13, 14. 



Report, Geol. Survey of Illinois, vol. iv. p. 430. 



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

 Schimper, Traite d. PalSont d. Veg6t. vol. ii. p. 25. 

 Lepidodendron distans. 

 Feistmantel, Vers. d. Bohm. Kohlenab. p. 212, pi. xlviii. fig. 3. 



Lepidodendron conicum. 



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



Geol. of Pennsyl. vol. ii. p. 874, pi. xv. fig. 3. 



Schimper, Traite d. Paleout. Veget. vol. ii. p. 26. 

 Lepidodendron caudatum. 



Eoehl (in part), Foss. Flora d. Steink. Form. Westph. pi. vi. fig. 7. 



Remarks. This species much resembles Lepidodendron aculeatum, and may, 

 perhaps, be only a variety of it, but for the present I prefer treating it as 

 specifically distinct. 



A very interesting communication " On the Variations of the Leaf-scars of 

 Lepidodendron aculeatum, Sternberg," by Mr. Fairchild, appears in the 

 Annals of the New York Academy of Sciences (vol. i. p. 77, pis. v.-ix.), 

 1877). This author is of opinion that Lepidodendron modulatum and certain 

 other species are only different ages and states of preservation of Lepidoden- 

 dron aculeatum. The subject still requires to be carefully examined into. 



Horizon. Coal Measures. 



Locality. British. Durham : Sunderland. 



