174 FOSSIL PLANTS. 



In unison with this view I give the following references : 



Halonia regularis. 



Binney, Obs. Structure Foss. Plants Carb. Strata, part iii. p. 89, pi. xv. 



figs. 1-4, pi. xvi. figs. 1-5, 1872. 

 Feistmantel, Steink. v. Kralup in Bohm. pi. xvii, figs. 1-5, pi. xviii. 



Vers. d. Bohm. Kohlenab. p. 193, pi. xxxiv., fig. G, pi. xxxv., 



pi. xxxvi. figs. 1, 2, and pi. xxxvii. figs. 1, 2). 

 Lindley and Hutton, Foss. Flora, vol. iii. pi. ccxxviii. 

 Eenault, Cours d. Botan. Foss. 1882, p. 42. 

 Uuger, Synop. Plant. Foss. p. 137. 

 Genera et Species, p. 267. 



Halonia tuberculata. 



Goppert, Foss. Flora d. Ubergangs. p. 194, pi. xxviii. fig. 8 

 Keuault, Cours d. Botan. Foss. 1882, p. 53, pi. xii. fig. 3. 



Haloniatortuosa. 



Bonlay, Terr. Houil. du Nord. de la France, p. 39. 

 Lindley and Hutton, Foss. Flora, vol. ii. pi. Ixxxv. 

 Eenault, Cours d. Botan. Foss. 1882 p. 54, pi. xii. fig. 4. 



Halonia gradlis. 



Lindley and Hutton, Fossil Flora, vol. ii. pi. Ixxxvi. 

 See also Schimper, Traite d. Paleont. Veget. vol. ii. p. 53. 

 A number of examples of Halonian branches of Lepidophloios are in the 

 collection. 



Localities. British. Durham : Gateshead. Northumberland : Newcastle- 

 on-Tyue. Shropshire: Coalbrook-Dale. "Worcester- 

 shire : near Bewdley. Yorkshire : Bradford ; 

 Hifftree Quarry, Leeds. 



KNORRIA, Sternberg. 



I have already mentioned my reasons for rejecting this genus.* The 

 plants for which it was formed are merely imperfectly preserved examples of 

 Lepidodendron, and perhaps also individuals of other genera. 



The Collection contains many examples of these fossils. 



SIGILLARIA, Brongniart, 1822. 

 Sur la classification des Vegetaux fossiles, p. 9. 



SECTION CLATHBABLE. 



Sigillaria discophora, Konig, sp. 



Lepidodendron discophorum. 

 Bronn, Index Palseont. p. 650. 



Konig, Icones Fossilium Sectiles, pi. xvi. fig. 194, 1825. 

 Ulodendron majus. 

 Bronn, Index Palseont. p. 1341. 



Carruthers, Monthly Micro. Journ. vol. iii. p. 153, pi. xliii. fig. 4, 1870. 

 Giebel, Deutschl. Petrefacten, p. 82. 

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

 Lesquereux, Eeport, Geol. Survey of Illinois, vol. iv. p. 435. 

 Geol. of Pennsyl. vol. ii. p. 875. 



Coal Flora of Pennsyl. p. 401 (? pi. Ixvi. figs. 3, 3 a ) (excl. 



ref. Steinhauer). 

 Lindley and Hutton, Foss. Flora, vol. i. pi. v. (excl. ref.). 



* See ante, p. 167. 



