CARBONIFEROUS. 81 



Sphenopteris geniculata. 



Germar & Kaulfuss, Verb. d. k. Leop. Carl. Akad. vol. xv. p. 224, 



pi. Ixv. fig. 2. 

 Sternbnrg, Vers. ii. p. 61. 



Diplothmema geniculatum. 



Stur, Culm Flora, heft 2, p. 230. 



Trichomanites geniculatus. 

 Giebel, Deutschl. Petrefacten, p. 47. 



Sphenopteris Kaulfussi. 



Schimper, Traite d. Paleont. Veget. vol. i. p. 412. 



Trichomanites Kaulfussi. 

 Bronn, Index Palseont. p. 1278. 

 Goppert, Syst. Fil. Foss. p. 264. 



Sphenopteris alata. 



Gutbier (non Brongt.), Vers. d. Zwick. Schwarzk. p. 34, pi. v. figs. 16, 17 ; 

 pi. xi. fig. 1. 



Sphenopteris. 



Lebour, Illustrations of Fossil Plants, p. 83, pi. xli. 



? Sphenopteris acwtiloba. 



Ettingshausen (non Sternb.), Steinkf. v. Eadnitz, p. 35, pi. xviii. fig. 1. 



? Hymenophyllites Hildreti. 



Lesquereux, Geol. of Pennsyl. vol. ii. p. 863, pi. ix. fig. 5. 



? Sphenopteris Hildreti. 



Lesquereux, Coal Flora in Pennsyl. p. 283. 



? Sphenopteris membranacea. 



Bronn, Index Palseont. p. 1169. 



CrSpin, Bull. Soc. Roy. Bot. Belgique, vol. xix. 2 e part, p. 51. 



Giebel, Deutschl. Petrefacten, p. 43. 



Gutbier, Vers. d. Zwick. Schwarzk. p. 35, pi. xi. fig. 2. 



Sternberg, Vers. ii. p. 127. 



Unger, Synop. Plant. Foss. p. 66. 

 Genera et Species, p. 121. 

 ? Diplothmema membranaceum. 



Stur, Culm Flora, heft 2, p. 230. 



Remarks. Geinitz (Verstein. d. Steinkohlenf. in Sachsen) unites S. mem- 

 branacea, Gutbier, with S. furcata, Brongt., regarding it only as a form of 

 the latter fern. This view I feel inclined to adopt. Crepin (1. c. p. 15), 

 however, who has been enabled to examine good specimens of *S'. membranacea, 

 regards it as a distinct species. Should his opinion of the specific value of 

 these two plants be adopted, fig. 9 of Geinitz's pi. xxiv., included under 

 S. (Hymenophyllites) furcata, must be removed from that species and placed 

 with S. membranacea, Gutbier. 



From the examination of better specimens, I find that the fern I identified 

 as S. furcata from the Calciferous Sandstone Series, Glencartholm, Eskdale, is 

 S. Machanekii, Ett., sp. 



Horizon. Coal Measures. 



Localities. British. Ayrshire : Dalblare, near Old Cumnock. Lanark- 

 shire : Airdrie. Worcestershire : Forest of Wyre. 



Sphenopteris dissecta, Brongniart. 



Sphenopteris dissecta. 



Boulay, Terr. Houil. du Nord de la France, p. 28. 



