FERNS— MEGALOPTERIDE^—CALLIPTE III DIUM. 123 



CALLIPTBRIDIITM INiEQITALE Lx. 



PI. XXXIX. Fig. -i: PI. LXI, Fig. If?; PL LXII, Fig. fl. 



1879. GalliiHeridium iiucquale Lesquereux, Coal Flora, Atlas, pi. xxxiii. figs. 2-.5 ; text 

 (1880), vol. i, p. KiS. 



A few fragments seem to agree in all i-es})ects with the corresponding 

 portions of the species from Cannelton, Pennsylvania, described and illus- 

 ti-ated hj Professor Lesquereux in the Coal Flora as CaUipteridium hmquale. 

 In size, form, nervation, and arrangement of the pinnules, which have a 

 tendency to opposition on the rachis, some of the specimens are close to 

 fig. 2, of pi. xxxiii, in the above-named work. 



Locality. — Gilkerson's Ford, U. S. Nat. Mus., 5483. 



Gallipteeidium cf. Mansfieldi Lx. 



The specimens which I compare with this species, known only from 

 Pennsylvania,^ are far from typical. My reason for the pro^'isioual reference 

 is their agreement with certain specimens found to have been assigned to 

 Callipteridium Mansfieldi by the author of the species. 



The Missouri specimens are very close to others from Cape Breton, 

 Nova Scotia, and from Shenandoah, Pennsylvania, which I am unable to 

 separate from a compact dilated obtuse form of AJetliopteris Serlii Brongn. 

 The nerves are rather straig'ht and open for C. Mansfieldi, while the midrib 

 is slender for A. Serlii. 



Locality. — Deepwater, U. S. Nat. Mus., 5484. 



Callipteridium Sullivantii (Lx.) Weiss. 



PI. XXXIX, Figs. 1-3: PI. XLI, Figs. 1-3. 



1854. CaUipteris Sullivantii Lesquereux. Best. Jouru. X. H., vol. vi. no. 4, ji. 423. 

 1858. CaUipteris Sullivantii Lesquereux, Geol. Pennsylvania, vol. ii, p. 866, pi. v, 



fig. 13. 

 1881. GalUpteris Sullivantii Lx., C. A. White, Eept. Geol. Surv. Indiana, ISSO, p. 153, 



pi. ix, fig. 4. 

 1881. CaUipteris Sullivantii Lx., Calvin, Pop. Sci. Missouri, vol. xviii, p. 619, iig. 1. 

 1883. CaUipteris Sullivantii Lx., Chamberlain, Geol. Wisconsin, vol. i, p. 216, Iig. 67c. 

 1889. CaUipteris Sullivanti Lx., Lesley, Diet. Foss. Pennsylvania, vol. i, p. 108, text fig. 

 1891. CaUipteris Sidlirantii Lx., Le Conte, Elements Geol., p. 363, fig. 472. 

 1869. Aletlwpteris Sullivanti (Lx.) Schiniper, Traite, vol. i, p. 561. 



' Les(iuereus, Coal Flora, vol. i, p. 166, pi. xxvii, figs. 1, 2. 



