CARBONIFEROUS. 163 



zm. 



Schmalhauseu, Bull. 1'Acad. Imp. St. P6tersb. vol. xxii. p. 281, pi. ii. 

 figs. 4, 5. 



Bergeria alternans. 



Schmalhausen, Bull. Acad. Imp. St. Petersb. vol. xxii. p. 281, pi. ii. fig. 6. 

 Knorria acicularis. 



Goppert, Foss. Flora d. Ubergangs. p. 200, pi. xxx. fig. 3. 

 Heer, Foss. Flora d. Baren Insel, p. 42, pi. viii. fig. 2d ; pi. x. figs. 6, 7. 

 ? Knorria, anceps. 



Eichwald, Lethsea Eossica, vol. i. p. 153, pi. xii. figs. 2, 3. 

 ? Knorria mammillaris. 



Eichwald, Lethsea Eossica, vol. i. p. 155, pi. ix. fig. 4. 

 Knorria imbricata. 



Geinitz, Flora d. Hainich.-Ebersdorfer, p. 57, pi. viii. fig. 3 ; pi. ix 

 figs. 1-3 (excl. 2 and 4). 



Flemingites Pedroanus. 



Carruthers, Geol. Mag. vol. vi. p. 151, pi. v. 1869. 

 ? Ptychopteris microdiscus. 



Eichwald, Lethsea Eossica, vol. i. p. 106. pi. v. figs. 2, 3. 

 Ulodendron commutatum. 



Lesquereux, Coal Flora of Pennsyl. p. 401, pi. Ixvi. fig. 2. 



Schmalhausen, Mem. 1'Acad. Imp. St. Petersb. vii e ser. vol. xxxi. p 17 

 pi. iv. figs. 7, 8, 1883. 



Schimper, Traite d. Paleout. Veget. vol. ii. p. 40, pi. Ixiii. 

 Ulodendron parmatus. 



Carruthers, Monthly Micro. Journ. vol. iii. p. 152, pi. xliv. fig. 4, 1870. 

 Ulodendron Allani. 



Bronn, Index Palseont. p. 1341. 



Buckland, Geol. and Mineral, vol. ii. p. 92, pi. Ivi. fig. 3. 

 Ulodendron ovale. 



Carruthers, Monthly Micro. Journ. vol. iii. p. 152, pi. xliv. fig. 1. 



Ulodendron pumilum. 

 Eichwald, Lethsea Eossica, vol. i. p. 144, pi. x. fig. 5. 



Ulodendron Rhodeanum. 

 Bronn, Index Palseont. p. 1341. 

 Uuger, Synop. Plant. Foss. p. 135. 



Ulodendron Rhodii. 

 Buckland, Geol. and Mineral, vol. ii. p. 93, pi. Ivi. fig. 6. 



Ulodendron ellipticum. 

 1 Bronn, Index Palseont. p. 1341. 

 Eichwald, Lethsea Eossica, vol. i. p. 140, pi. ix. figs. 6, 7, pi. x. figs. 3, 4 



and 6. 



? Goldenberg, Flora Sarsep. Foss. heft i. p. 18. 

 ? Sternberg, Vers. ii. p. 186, pi. xlv. fig. 2. 

 ? Unger, Synop. Plant. Foss. p. 135. 

 ? (in part), Genera et Species, p. 264. 



Ulodendron minus. 

 Thompson (in part), Trans. Geol. Soc. Edinb. vol. iii. p. 341, pi. a, figs. 2, 3 



Ulodendron transversum. 

 Eichwald, Lethsea Eossica, vol. i. p. 139, pi. ix. fig. 8 (? pi. vi. fig. 13). 



Ulodendron ornatissimum. 



Tate, in Johnston's Nat. Hist. Eastern Borders, vol. i. p. 302, 1853. 



M 2 



