178 WILLIAMSONIA. 



which were named by Carruthers Williamsonia. I have elsewhere 

 dealt more fully with the evidence on which this conclusion 

 is based. 1 



1. Williamsonia gigas (Lindley & Hutton). 



[Foss. Flor. vol. iii. pi. clxv. 1835.] 

 (PL V. ; PL VI. Fig. 2 ; PL VII. ; PL VIII. Fig. 1 ; Text-fig. 29.) 



1828. Zamia Mantetti, Brongniart, Prodrome, p. 94. 



1835. Zamia gigas, Lindley & Hutton, Foss. Flor. pi. clxv. 



1836. Odontoptcris falcata, Goppert, Foss. Farm. p. 210. 



1838. Odontopteris falcata, Sternberg, Flor. Vorwelt, vii. p. 78, pi. xxiii. 



fig. 1. 

 Zamites faleatus, ibid. p. 197. 



1841. Zamites gigas, Morris, Annals, vol. vii. p. 116. 

 Ptilophyllum faleatum, ibid. p. 118. 



1842. Encephalartos gigas, Miquel, Mon. Cycad. p. 61. 

 1844. Zamites gigas, Mantell, Medals of Creation, p. 116. 



1848. Zamites gigas, Bronn, Ind. Pal. p. 1378. 



1849. Zamites gigas, Brongniart, Tableau, p. 106. 

 Podozamites gigas, ibid. p. 62. 



P. faleatus, ibid. 



Zamites Moreaui, ibid. p. 106. 



1850. Zamites gigas, linger, Gen. spec, plant, foss. p. 283. 



1853. Zamites Schmiedelii, Andrae, Foss. Flor. Sieben. pi. ix. 



1854. Zamites gigas, Morris, Brit. Foss. p. 25. 



1864. Zamites gigas, Leckenby, Quart. Journ. Geol. Soc. vol. xx. p. 77. 



1865. Cf. Zamites Renevieri, Heer, Urwelt Schweiz, p. 144, fig. 95. 

 1870. Williamsonia gigas, Carruthers, Trans. Linn. Soc. vol. xxvi. p. 693. 



Zamites gigas, Schimper, Trait, pal. veg. vol. ii. pp. 105 and 205. 

 Zamites gigas, Williamson, Trans. Linn. Soc. vol. xxvi. p. 663. 

 1873. Zamites gigas, Zigno, Flor. foss. Oolit. vol. ii. p. 41. 



1875. Zamites giyas, Saporta, Pal. FranQ. vol. ii. p. 87, pi. Ixxxi. fig. 1. 

 Z. Feneonis, ibid. p. 99, pis. Ixxxvii.-xcii. 



Z. claravalknsis, ibid. p. 108, pi. xxiii. fig. 1. 



Z. Moreaui, ibid. pi. Ixxxiv. figs. 1 and 2. 



Z. Renevieri, ibid. pi. xciii. fig. 2. 



Williamsonia gigas, Phillips, Geol. Yorks. p. 225, lign. 53, pi. xxiv. 



1876. ? Zamites Feneonsis, Heer, Flor. foss. Helvet. pi. Iii. 



1877. Williamsonia cf. gigas, Feistmantel, pi. xliv. 



1881. Zamites gigas, Renault, Cours bot. foss. vol. i. p. 54. 

 Z. Feneonis, ibid. p. 54, pi. v. fig. 4. 

 Z. Moreaui, ibid. p. 54, pi. vi. fig. 5. 



1 Seward (97). 



