122 FOSSIL PLANTS. 



Bunbury, Quart. Journ. Geol. Soc. vol. iii. p. 429. 

 Dawson, Acadian Geol. 2nd ed. p. 485, 1868. 



Foss. Plants of Lower Carb. Canada, pp. 34, 36, 1873. 

 Giebel, Deutschl. Petrefacten, p. 59. 

 Goppert, Foss. Flora d. Perm. Form. p. 124. 

 ? Lesquereux, Coal Flora in Pennsyl. p. 248, pi. xlvi. figs. 4-6, 

 Geol. of Pennsyl. vol. ii. pt. ii. p. 867. 



Eeport Geol. Survey of Illinois, vol. iv. p. 403. 

 Lindley and Hutton, Fossil Flora* vol. iii. pi. clxxxiv. 

 Morris, Trans. Geol. Soc. 2nd ser. vol. v. p. 488. 

 Eb'mer, Palaeontographica, vol. ix. p. 34. 

 Sternberg, Vers. ii. p. 152. 

 Unger, Syn. Plant. Foss. p. 101. 



Genera et Species, p. 180. 

 Zeiller, Princip. V6g6t. Foss. du Terr. Houil. p. 85. 



Flore Houil. des Asturies, p. 12. 



Fougeres du Terr. Houil. du Nord de la France, p. 200. 



Pseudopecopteris abbreviata. 



Lesquereux, Coal Flora in Pennsyl. p. 203. 



Hawlea abbreviata. 



Stur, Culm Flora, heft 2, p. 293. 



Remarks. The value of the specific distinctions of this species have been 

 already discussed in the remarks on Pecopteris polymorpha, Brongt. 

 Horizon. Coal Measures. 



Localities. British. Somersetshire : Eadstock. Staffordshire : Sandwell 

 Park Trial Sinking, West Bromwich. 



Pecopteris unita, Brongniart. 



Pecopteris unita. 



Brongniart, Prodrome, p. 58. 



Hist. d. Veget. Foss, p. 342, pi. cxvi. figs. 1-5. 

 Dawson, Acadian Geol. 2nd ed. p. 485, 1868. 



Fossil Plants of Lower Carb. Canada, p. 38, 1873. 

 Giebel, Deutschl. Petrefacten, p, 58. 



Grand 'Eury, Flore Carbon, du D6p. de la Loire, p. 76, pi. viii. fig. 13 b. 

 Lesquereux^ Geol. of Pennsyl. vol. ii. pt. ii. p. 867. 



Eeport Geol. Survey of Illinois, vol. ii. p. 442. 



Coal Flora of Pennsyl. p. 223, pi. xl. figs. 1-7. 



Presl in Sternberg, Vers. ii. Fasc. 7, 8, p. 158. 

 Eenault, Cours. d. Botan. Foss. vol. iii. p. 119, pi. xx. figs. 11-19. 

 Eoehl, Foss. Flora d. Steink. Form. Westphalens, p. 90. 

 Eomer, Palaeontographica, vol. ix. p. 34. 

 Schimper, Traite d. PalSont. Ve.get. vol. i. p. 505. 

 Unger, Synop. Plant. Foss. p. 102. 



Genera et Species, p. 183. 

 Cyatheites unitus. 

 Bronn, Index Palseont. p. 365, 



Geinitz, Vers. d. Steink. in Sachsen, p. 25, pi. xxix. figs. 4, 5. 

 Sandberger, Flora d. Steink. im Badischen Schwarzk. pp. 3, 4, 5. 



Cyathocarpus unitus. 



Weiss, Foss. Flora d. jiing. Steink. u. Eothl. p. 88, pi. xii. figs. 5, 6. 

 Oligocarpia unita. 



Stur, Culm Flora, heft 2, p. 294. 



Diplazites unitus. 

 Stur, Morph. u. Syst. d. Culm u. Carbonfarne, p. 143. 



