FEENS— SPnENOPTERIDE.E— SPHENOPTERIS. 55 



are, in fact, close to S. crlsUita, and seem to have been slightly confused 

 in the Missouri collections with both that species and S. cheer ophyllo ides. 

 While agreeing in several featm-es with the former, it may be distinguished 

 in small fragments by the thick coriaceous texture, the compact upward- 

 curving pinnules, and the teeth situated on the distal margin of the pinnule 

 or lobes and' pointing upward. 



The characters last named, combined with the strongly unequilateral 

 pinnules, frequently give the more slender pinnae an appearance suggestive 

 of SjjJienopteris Essingii Andi-a or 8. incequilateralis Lx.^ 



I have seen no fertile pinnge from Missouri which seem to me to be 

 definitely referable to this species. The specimens from Nelsonville, Ohio, 

 described and figured in the third volume of the Coal Flora," the types of 

 which are in the Lacoe collection, ha\e a smooth rachis, a thin, smooth 

 lamina, much more slender pinnules, and some differences in dentition and 

 nervation, so that it will, I believe, be necessary to regard them at present 

 as varietally if not specifically distinct. 



Localities.— ?\ichev'^ coal bank, U. S. Nat. Mus., 5703, 5706, 5669, 5495, 

 5497, 5501, 5502, 5626, with abundant SpiroMs carbonaria; Deepwater, 

 U. S. Nat. Mus., 5704, 5494, 5498, 5668; Hobbs's coal bank, U. S. Nat. 

 Mvis., 5500; Owens's coal bank, U. S. Nat. Mus., 5705. 



Sphenoptbris canneltonensis u. sp. 



PI. XV, Fig. 2. 



1881. Sphenopteris hi/menophylloklcs Bi-ougn., Lesquereux, Coal Flora, vol. iii, p. 764, 



pi. cii, fig. 2 (excl. syn.). 

 1897. Sphenopteris sp., D. White, Bull. Geol. Soc. Amer., vol. viii, p. 300. 



The original of the figiu-e published in the Coal Flora as Sphenopteris 

 hymenophylloicles Brongn., and which is now No. 4262 in the Lacoe collec- 

 tion, I find to have been labeled later by Professor Lesquereux, together 

 with other specimens of the same form, as Sphenopteris Gtitbieriana Gein. 

 That the type from Cannelton, Pennsylvania, can hardly represent Brong- 

 niart's species^ appears probable from a comparison of the above-cited figure 

 in the Coal Flora with that given by Brongniart. The American specimens 



Coal Flora, vol. iii, p. 765, jjI. ciii, figs. 4, 5, 5a. 

 "1884, p. 764, pi. cii, fig3. 3, 4, 4a. 

 'Hist. veg. foss., p. 189, pi. Ivi, figs. 4n, 46. 



