FOSSIL FLORA OF THE STAFFORDSHIRE COAL FIELDS. 105 



In Alethopteris Grandini, on the other hand, the veins are straight or only slightly 

 curved. The general appearance of the two species is also dissimilar ; the more united 

 pinnules of Alethopteris Integra impart a much denser character to the frond. 



With Alethopteris valida Boulay it has also a slight similarity, but from that it is 

 distinguished by its smaller and very obtuse pinnules as well as by its somewhat 

 flexuous veins. The general appearance of the two plants is also essentially distinct. 



Alethopteris Integra, Gothan is apparently a rare species, and the only British 

 example I have seen is that given here at text-fig. 3, natural size, and of which a pinnule 

 is enlarged 10 times at text-fig. 4. Dr Gothan, who has seen the fossil, agrees with 

 me in its identification with his species. 



The specimen was collected by Mr H. W. Hughes, F.G.S., to whom my thanks are 

 due for the kind permission to describe and figure it here. 



Horizon and Locality. — Roof of New Mine Coal : Doulton's Clay Pit, Netherton, 

 near Dudley. 



Lonchopteris Brongniart. 

 Lonchopteris rugosa. 



1835. Lonchopteris rugosa, Brongt., Hist. d. veget. foss., p. 368, pi. cxxxi. fig. 1. 



1886. ,, ,, Zeiller, Flore foss. bassin houil. d. Valen., p. 244, pi. xxxix. figs. 2, 3 ; 



pi. 1. figs. 3, 4. 



Note. — Rare. 



Horizons and Localities. — 



Roof of Brooch Coal: Russell's Hall Colliery, Dudley. Collected by the late 



Sir J. Lundy. 

 Ten-foot Ironstone Measures : Clayscroft Openwork, Coseley, near Dudley. 

 Old Mine Fireclay = Roof of Stinking Coal : Docking-iron Pit, Delph, Brierley 

 Hill. 



Odontopteris Brongniart. 



Odontopteris alpina Sternb., sp. 



1833. Neuropteris alpina, Sternb., Essai Jiore monde prim., vol. ii. fasc. v.-vi. p. 75, pi. xxii. fig. 2. 



1855. Odontopteris alpina, Geinitz, Vers. d. Steinkf. in Sachsen, p. 20, pi. xxvi. fig. 12, pi. xxvii. fig. 1. 

 1901. ,, ,, Kidston, Proc. Yorks. Qeol. and Polytech. Soc, vol. xiv. part ii. p. 196, 



pi. xxviii. figs. 1 and la. 

 1904. „ ,, Potonie (pars), Abbild. u. Beschreib./oss. Pflanzen, No. 22, fig. 1. 



1870. Xenopteris alpina, Weiss, Zeitsch. d. deut. geol. Gesell., vol. xxii. p. 869. 



1843. Neuropteris confiuens, Gutbier, in Geinitz and Gutbier, Geea v. Sachsen, p. 79. 



Remarks. — The South Staffordshire specimen is similar to that from Yorkshire which 

 has been figured by me under the name of Odontopteris alpina, and agrees especially with 

 the figure given by Geinitz ; only, my examples are a little smaller in all their parts. 

 There is, 1 think, room for doubt as to the specific distinction between Odontopteris 

 TRANS. ROY. SOC. EDIN., VOL. L. PART I. (NO. 5). 14 



