CONIOPTERIS. 99 



Brongniart's' genus to some of the species originally placed in his 

 group Sphenopteris- Dicksonioides, including the Yorkshire species, 

 C. Murrayana and Tympanophora racemosa. For reasons stated 

 below, I regard most of the specimens previously identified as 

 Sphenopteris, Pecopteris, Tliyrsopteris, or Coniopteris Murrayana 

 as identical with Sphenopteris hymenophylloides, Brongn., and the 

 latter specific name has therefore been adopted. 



1. Coniopteris hymenophylloides (Brongniart). 



[Hist. veg. foss. p. 189, pi. Ivi. tig. 4, 1828.] 



PI. XVI. Figs. 4-6 ; PI. XVII. Figs. 3, 6-8 ; PI. XX. 

 Figs. 1 and 2 ; PI. XXI. Figs. 1-4. 



1828. Sphenopteris hymenophylloides, Brongniart, Hist. veg. foss. p. 189 



pi. Ivi. fig. 4. 



S. hymenophylloides, Brongniart, Prodrome, p. 51. 

 Pecoptei-is Murrayana, Brongniart, Hist. p. 358, pi. cixvi. fig. 5. 



1829. Sphenopteris stipata, Phillips, Geol. Yorks. p. 147, pi. x. fig. 8. 

 S. muscoides, ibid. p. 153, pi. x. fig. 10. 



1835. Sphenopteris argnta, Lindley & Hutton, Foss. Flor. pi. clxviii. 

 Tympanophora simplex, ibid. pi. elxx. A. 



T. racemosa, ibid. pi. clxx. w. 



1836. Hymenophyllites Phillipxii, Goppert, Foss. Farrn. p. 256. 

 1838. Sphenopteris hymenophylloides, Sternberg, Flor. Vorwelt, p. 60. 



Polystichites Murrayana, ibid. p. 117. 



.1848. Hymenophyllites Phillipsi, Bronn, Ind. Pal. p. 602. 

 Tympanophora simplex, ibid. p. 1340. 

 T. racemosa, ibid. 

 Sphenopterin muscoides, ibid. p. 1169. 



1849. Sphenopteris hymenophylloides, Brongniart, Tableau, p. 105. 

 Coniopteris Murrayana, ibid. (pars). 



Tympanophora simplex, ibid. 

 T. racemosa, ibid. 



1850. Hymenophyllites Phillipsii, linger, Gen. spec, plant, foss. p. 129. 

 Pecopteris Murrayana, ibid, (pars), p. 179. 



Tympanophora simplex, ibid. p. 520. 



T. racemosa, ibid. 

 1851. Sphenopteris nephrocarpa, Bunbury, Quart. Journ. Geol. Soc. vol. vii. 



p. 179, pi. xii. figs, la and \b. 

 1854. Tympanophora simplex, Morris, Brit. Foss. p. 24. 



Sphenopteris hymenophylloides, ibid. p. 21. 



S. muscoides, ibid. 

 1856. Hymenophyllites Phittipsil, Zigno, Flor. foss. Oolit. vol. i. p. 90. 



H. Murrayana, ibid. p. 92. 



