178 JVIIXIAMSONIA. 



which, were named by Carruthers Williamsonia. I have elsewhere 

 dealt more fully with the evidence on which this conclusion 

 is based.' 



1. Williamsonia gigas (Lindley & Hutton). 



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

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



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



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



1836. Odontopteris faleata, Goppert, Foss. Farm. p. 210. 



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

 fig. 1. 

 Zamites falcatus, ibid. p. 197. 



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

 Ptilophyllum fahatiiim, ibid. p. 118. 



1842. Enoephalartos gigas, Miqnel, Men. Cycad. p. 61. 

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



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



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

 Podozamites gigas, ibid. p. 62. 



P. faleatas, ibid. 



Zamites Moreaui, ibid. p. 106. 



1850. Zamites gigas, Unger, 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, Leokenby, Quart. Journ. Geol. Soo. vol. ix. 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. v6g. vol. ii. pp. 105 and 205. 

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

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



1875. Zamites gigas, Saporta, Pal. Fran(j. vol. ii. p. 87, pi. Ixxxi. fig. 1. 

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



Z. claravallensis, 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. Torks. p. 225, lign. 53, pi. xiiv. 



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



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



1881. Zamites gigas, Eenault, 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). 



