﻿white] the seeds of aneimites 323 



Since the discovery of the relation of the seeds to Adiantites, my 

 examinations have not only shown the generic type of fruit to be 

 present at most of the places where Adiantites is found in the Potts- 

 ville formations, but they have also revealed different forms of the 

 Wardia seeds in the most intimate association with four other species 

 of the fern genus, with one of which, Adiantites tenuifolius, it is, 

 again, in actual union. 



.Meanwhile the especial interest aroused by the correlation by Oliver 

 and Scott, 1 on the basis of anatomical characters, of the seeds de- 

 scribed by Williamson as Lagenostoma with Lyginopteris and, 

 through the latter, with the Hoeninghausii group of Spenopterids ; 

 and the discovery by Kidston 2 of a Rhabdocarpous seed attached to 

 the frond of Neuropteris heterophylla, as well as the arguments from 

 distributional association set forth by Grand'Eury 3 make timely the 

 presentation of the data relating to the Cycadofilic character of the 

 hitherto unsuspected genus Adiantites. 



Unfortunately a nomenclatorial change for Adiantites is at the 

 outset necessary, the type section of the genus as proposed by Goep- 

 pert 4 being composed of species of Ginkgo. The name is therefore 

 untenable in its restricted application as employed by Schimper, Stur, 

 and others and as now generally recognized. The emended genus 

 is indistinguishable from the American plant to which Dawson gave 

 the name Ancimites. The latter name, as indicated by Etheridge, 5 

 is valid, as the eligible name next in priority, for the genus. Ac- 

 cordingly hereafter in this paper Ancimites will be used for Adian- 

 tites. 



The specimens to be described were collected from a cut along the 

 Keeney Creek branch of the Chesapeake and Ohio railway on the 

 mountain side back of Nuttall, West Virginia. The horizon is in 

 the Thurmond formation (lower Pottsville) about 350 feet below 

 the Raleigh sandstone. 



The plant, a new species typical of the genus Aneimites (Adian- 

 tites) may be described as follows : 



ANEIMITES (WARDIA) FERTILIS n. sp. 



(Plates XLVII and XLVIII) 

 Fronds quadripinnatifid, or quadripinnate ?, spreading, a little 

 delicate, but hardly lax, and rather dense, the divisions of the rachis 



1 Proc. Roy. Soc, vol. lxxi, 1903, p. 477. 



2 Proc. Roy. Soc, vol. lxxii, 1903, p. 487. 



3 Comptes Rendits. vol. 138, 1904, p. 607; vol. 139, p. 23. 



4 Syst. aiic. foss., 1836, p. 216. 



6 Proc. Linn. Soc. X. S. W. (2), vol. 111, pp. 1301, 1302. 



