102 FLORA OF LOWER COAL MEASURES OF MISSOURI. 



clear and iiiiobscured by ramentum, so that there seems t(j be no reason 

 why the species should not be placed directly in the genus Caulopteris. 



Locality. — Henry Covinty, Missouri; Lacoe collection, U. S. Nat. Mus. 



Caulopteris? acantophora Lx. 



1870. Caulopteris acantophora Lesquereux, Rept. G-eol. Surv. Illinois, vol. iv, p. 458, 



pi. xxvi, figs. 3, 4. (" Caulopteris f acantophora'''' in expl. pi.) 

 1884. Ulodendron punctatum L. and H., Lesquereux, Coal Flora, vol. iii, p. 405 (syn.). 



A number of specimens appear to agree well with this species, first 

 described by Professor Lesquereux from Illinois. In these, however, as 

 well as in the type specimen, now in the Illinois State Museum of Natural 

 History, I am unable to find any clear evidence of any attachment of fossil 

 petioles, such as to warrant its generic reference. On the contrary, in the 

 specimen figured in the Ilhnois Report, vol. iv, pi. xxvi, fig. 3, the concen- 

 tric markings on the left appear to be due entirely to slickensides, while the 

 curved zcwie on the right is exti-aneous. An examination of a large number 

 of similar specimens from Morris and Colchester, Illinois, fails to show a 

 single scar that, in my opinion, can satisfactorily be regarded as belonging 

 to Caulopteris. 



The peculiar and characteristic spines of the species are present and 

 clearly visible. It may not be impossible that these remains are the petioles 

 of some spinous Pecopteris, such as Pecopteris villosa, P. vesUta, or P. lepidor- 

 racMs, one of which is represented abundantly at both Clinton in Missouri 

 and the region of Morris in Illinois. 



Locality. — Owen's coal bank, U. S. Nat. Mus., 6272. 



MEGAPHTTON Artis, 1825. 



Antediluvian Phytology, pi. xx. 



Megaphtton Goldenbergi Weiss. 



1860. Meaaphytum Goldenbergi Weiss, Zeitschr. d. deutscli. geol. Gesell., vol. xii, p. 511, 



text fig. 

 1869. Megaphytum Goldenhergii Weiss, Schimper, Traite, vol. 1, p. 713, pi. liv, figs. 1,2. 

 1872. Megaphj/tum Goldenbergi Weiss, O. Feistmantel, Abb. k. bohm. Gesell., (6) vol. v, 



p. 7, pi. i, fig. 1. 

 1874. Megaphytum Goldenbergi Weiss, O. Feistmantel, Verst. bohm. Ablag., vol. i, p. 



142, pi. xxii, fig. 1. 

 1879. Megaphytum Goldenbergii Weiss, Lesquereux, Coal Flora, Atlas, p. 13, pi. Ixi, 



fig. 4; text, vol. i (1S80), p. 340. 

 1881. Megaphytum Goldenbergi Weiss, Aus d. Fl. d. Steiuk., p. 17, pi. xix, fig. 112. 



