FILICALES. 



IT) 5 



or ]il!ites to Saporta, Heer, Stur, and Tjosquo- 

 reux, and the first and last authors t)oth 

 agreed that their material from I^'rance and 

 America, respectively, was identical with tiu' 

 English material. These students did not 

 agree, however, on Gardner's reference to 

 Am-imia, Saport.a inclining toward a new genus 

 allied to Todea and Stur suggesting Osmunda. 

 Heer al.so opposed Aneimia, and Les(iu(n-eu.\ 

 thought that his material was more closely 

 allii'd to (lymnogramma tartarea Dcsvaux of 

 trojiical .\merica. 



Aneimia cocemcn, though distinct, is very 

 similar to a new species of Aneimia described 

 ])y Knowlton (unpublished) from the Raton 

 forniation of the southern Rocky Mountain 

 province. Kjiowlton's species, whiclr comes 

 from a horizon slightly older than the Wilcox, 

 has relatively narrower and greatly elongated 

 lobes with prominent pointed teetli, wliich do 

 not occur in pairs. 



An^ong antecedent forms from the Upper 

 Cretaceous that may be compared with the 

 present species are Aspleniwn dicl"sonianvm 

 Heer ' and Dichsonia gramJandica Heer - ])oth 

 of which are present in the Tuscaloosa forma- 

 tion of iMabama and are more or less common 

 in the Coastal Plain, ranging northward to 

 western GreenlamL Their reference to Asple- 

 nium and Dicksouia is not at all justified by 

 the evidence. 



Though most of the existing species of 

 Aneimia are rather different in appearance, 

 the subgenus Aneimiorrhiza J. Smith, espe- 

 cially the exclusively American section Cu- 

 neatse Prantl, including Aneimia cicufaria 

 Kuntze, Aneimia cuneafa Kuntze, and Anei- 

 mia adiantifolid Swartz of tlie American Ti'op- 

 ics, is very much like these two fossil species, 

 Gardner having first pointed out the resem- 

 blance between A. subcretacea and ^1. adianii- 

 folia, which is found as far northward as 

 southern peninsidar Florida and is referred by 

 Undenvood to the genus Ornithopteria Bern- 

 hardi. Aneimia eocenica is present in the 

 upper Clail>orne deposits of the Texas coastal 

 plain. 



Occurrence. — Lagrange formation (in beds of 

 Wilcox age), Puryear, Henry County, Temi. 



• Heer, Oswald, Flora fossil is arciica, vol. 3, pt. 2. [). Z1. pi. 1, fij^s. 1 .'>, 

 1874. 



2 See under Ancimnstricla in Tewberry, J.S.,r.S.(.;eol. Survey Mon. 

 26, p. 38, pi. 3, rigs. 1, 2, 1896. 



(collected by E. W. Berry): AYUcox group, -1 

 miles southwest of BoydsvUle, Clay County, 

 .\rk. (collected by E. W. Berry). One and one- 

 lialf miles north(>ast of Mansfield, DeSoto Par- 

 isli, ]ai. (collected by G. C. Matson and O. B. 

 ilojdvins). 



(olhrtiDns. — U. vS. National Museum. 



Genus LYGODIUM Swartz. 



T.YCODUM iu\ERV.\Ti'M (IjCscpiereux) Berry. 



Plate X, figures .VS. 

 Sfilishiiriti hiiiirrata. Lesquereux, Am. Philos. Soc. 



Trails., vol. l:j, p. 412, pi. 15, %,s. 3-G, 1809. 

 Gild-go hiiicri'ala. Knowlton, U. S. Geol. Survey I'ull. 



1.52, p. no, 189S. 



Description. — This species was described by 

 Lesquereu.x on tlio liasis of fragmentary speci- 

 mens that were collected by Hilgard from the 

 red sliales of Benton County, Miss., which at 

 tliat time was included in the westra*n part of 

 Tippah County. The type specimens in tire 

 Hilgard collection do not conform to Les- 

 C[uereux's figures, which eitlier must be v(uy 

 inaccurate or else are i)ased on still other 

 fragmentary specimens of this sjiecies which 

 have since been lost. 



Lesquiu'eu.x's description, which lie WTote 

 with the idea that he was dealing with the 

 foliage of a gymiios})erm allicul to the existing 

 Ginkgo, is v(irv misleading, and the species may 

 be recharacterized in the following terms: 

 Pinnules large and stout, equilateral and usually 

 bilobate; some individuals may have had a 

 subsidiary and relatively small basal lateral 

 lobe on each side. Lobes elliptical in outlim^, 

 their margins undulate or indented by shallow 

 broad crenations. The lobes are broadly 

 rounded at the ape.x and diverge at angles of 

 about 90°. The base is not preserved, but 

 from the venation in this region it must have 

 l)een truncately rounded or more or less cordate. 

 The texture was somewhat coriaceous. Vena- 

 tion chara(;teristic of Lygodium. Two prima- 

 ries diverge at the base of tlu* pinnule at an 

 angle of about 35°; they are stout and curve 

 outward, become much thinner distad, and are 

 eventually lost liy repeated branching. The 

 branches diverge at acut^i angl<« and are 

 much curved outward, forking dichotomously 

 several times and teiTninating at the margins. 

 The lobes are broad, L5 to 3 centimeters in 

 width, generally nearer the larger dimension. 

 They are relatively short, tiie free liml) being 



