APPENDIX. 121 



In the specimens obtained by Mr. Pumpelly, fragments of a number of different fronds are shown, 

 all of about the same size, so we may conclude that the figure now given is a fair representation of 

 the plant. 



Locality. — In brown sandstone, with Sphenopleris orientalis, from Sanyu, west of Peking. 



PODOZAMITES LANCEOLATUS, Lindl. sp. 



Plate IX, Fig. 7. 



Zamia lanceolata, Lind. & Hutt. Foss. Flor. Vol. Ill, fig. 4. 

 Zamites lanceolatus, Morkis, An. Nat. Hist. 1841. 



I have provisionally, and with doubt, referred a few pinnae of Fodozamites, found in the collection, 

 to this species. These pinnae have almost precisely the form of those figured by Lindley, and are 

 longer and narrower than those of P. Emmoiisii — being linear-lanceolate, with an acute long drawn 

 point, and an attenuated base. 



In one character they differ from both the species to which I have referred ; they seem to have been 

 thicker and more coriaceous than either — the nerves being so deeply buried in the parenchyma as to 

 be scarcely visible. 



The distinctness of the nerves depends, however, on the surface of the leaflet exposed, and on the 

 manner of fossilization — coarse micaceous shales, like that which contains the impression before us, 

 rarely showing the nervation with distinctness. 



The small number of the pinnae, of the character I have described, in the collection, renders it 

 difficult to determine, with accuracy, their specific relations. Their value, therefore, in a great degree, 

 consists in the evidence they give us of the presence of the genus to which they belong in the rocks 

 from which they were taken. 



Localiti/. — Kwci basin on the Yaugtse river, Province of Hupeh, China. 



PODOZAMITES EmMONSII, N&wb. 



^LATE IX, Fig. 2. 



p. fronde pinnata, pinnis distautibus integris alternis oppositisve, lanceolatis, apice attenuatis acutis, basi cuneatia, 

 nervis crebris. 



This is, apparently, the same plant as that described and figured by Prof Emmons (Geol. N. Car. 

 p. 331, pi. iii, fig. 1), under the name of P. lanceolatus ; but that name having been appropriated 

 for another species from the Oolite of Europe, it becomes necessary to give it another. 



The specimens which are contained in the collection brought by Mr. Pumpelly, consist mostly of 

 'ietached pinnae, scattered in confusion over the surface of pieces of blue shale. These pinnaj agree 

 perfectly in form and nervation with those of the Carolina plant. They are lanceolate in outline, and 

 rather abruptly narrowed to an acute termination at either end. The nerves are fine and numerous, 

 but distinctly visible, converging to a common point at the remote extremity. The rachis to which 

 all were, and a few are still attached, was slender, and striated longitudinally. The specimen figured 

 by Prof. Emmons is the basal portion of the frond where the rachis is strongest. Higher up this 

 character, to which he attaches some importance, would be lost. The Carolina plant is abundant in 

 the upper plant beds, where it is associated with several species supposed to be identical with some 

 from the Trias (Keuper) of Europe, such as Pecopteris Stutgardtensis, Laccopteris germinans, &c. ; 

 it is, however, not quite certain that there are not also found there some species which are found in 

 the Jurassic of Europe. More careful study of this flora will be necessary before that question can 

 be settled ; but the beds which contain P. Emmonsii are now generally supposed to represent the 

 Keuper of Europe, and the evidence which this gives, as to the age of the Chinese rocks containing 

 it, so far as it goes, points to the same date for them. 



Locality. — Kwei basin on the Yangtse river, Province of Hupeh, China. 



16 July, 1866. 



