S8 TODITES. 



1868. AeroHichites Williamsomi, Eichwald, Lett. Eosa. p. 17, pi. ii. fig- 3- 



1869. Feeopterls {Acrostichitea) WilUamsoni, Schimper, Trait, pal. Teg. 



vol. i. p. 628. 

 Alethopteris recentior, ibid. p. 566. 



1874. Cladophlelis dentata, ibid. vol. iii. p. 505. 

 C. recentior, ibid. 



1875. Feeopteris dentata, Phillips, Geol. Yorks. p. 208, lign. 21. 

 F. curtata, ibid. p. 209, pi. viii. fig. 12. 



F. Williamsonis, ibid. p. 209, lign. 23, pi. x. fig. 7. 

 F. recentior, ibid. p. 211, pi. viii. fig. 7. 

 1877. ? Aspknium whitiiense, Heer, Flor. foss. Arct. vol. iv. (ii.) p. 39, 

 pi. iii. figs. 1, 2 ; pi. xx. fig. 4. 

 ? A. whitbiense tenue, ibid. p. 39, pi. iii. fig. 3 ; p. 94, pi. xvi. fig. 8 ; 

 pi. XX. figs. 1 and 3. 

 1885. Todea Williamsonis, Schenk, Palajont. vol. xxxi. p. 168, pi. iij. fig. 3. 



1889. Cladophlebis mrginiensis, Fontaine, Potomac Flora, p. 70, pi. iii. 



figs. 3-8 ; pi. iv. figs. 1 and 4. 

 C. parva, ibid. p. 73, pi. vi. figs. 1-3. 

 C distans, ibid. p. 77, pi. xiii. fig. 4. 

 Asplenium whitbiense, Yokoyama, Journ. Coll. Sci. Japan, vol. iii. 



p. 32, pi. iii. fig. 3. 



1890. Feeopteris curtata, Schimper & Schenk, Handbuoh, p. 100. 

 F. recentior, ibid. 



1891. Todea Williamsonis, Raciborski : Engler, Bot. Jahrb. xiii. p. 2, pi. i. 



figs. 7-10. 



1892. Acrostichites tenuis, Fox-Strangways, Tab. Foss. p. 128. 

 A. Williamsonis, ibid. 



Feeopteris dentata, ibid. p. 132. 

 1894. Todea Jfilliamsonis, Eaciborski, Flor. Krak. p. 158, pi. vi. figs. 17-20 . 



Cladophlebis vihitbiensis, ibid. p. 215, pi. xxi. figs. 1, 2, 8-10. 



C. solida, ibid. p. 79, pi. xxiv. figs. 10-13. 

 1896. Todea Williamsonis, Hartz, Med. om Gronland, vol. xix. p. 232, 

 pi. xii. figs. 4 and ia. 



■specimen. Natural History Museum, Paris. [Type- 

 specimen of Feeopteris dentata^ in tlie Manchester Museum, Owens 

 CoUege.] 



Prond bipinnate. The rachis straight and stout, especially in 

 the fertile fronds, often more than 1 cm. in breadth. 



Pinnse long, 20-30 cm., of uniform breadth, linear and gradually 

 tapering to an acuminate apex, alternate and crowded on the 

 rachis, given off at an acute angle (cf. PI. XV. Pig. 2), but in 

 the lower part of a frond the habit is more open and spreading 

 and the pinnae are almost at right angles to the rachis. 



' Seward (00), pi. i. 



