DESCRIPTION OF SPECIES. PP. 99 



evidently not very solid or woody in texture, for it left 

 only a flat leaf -like scale on the shale.) 



Habitat. — Roof-shales of the Waynesburg Coal, Cass- 

 ville, W. Va. 



GuiLiELMiTES, Geinitz. 



Guilielmites orbicularis. Sp. nov., PI. XXXVII, Fig. 2. 



Fig. 2, PI. XXXVII, represents an impression of a form 

 which we find in considerable numbers at Cassville. It 

 agrees so well with the fruit styled Guilielmites by Geinitz, 

 that we place it in that genus. ' The point of attachment 

 sometimes shows imperfect marks of a stem, and is shown 

 by the place from which the lines radiate. It is in nearly all 

 the specimens excentrically placed, and the woody lines, re- 

 sembling coarse veins, which radiate from it, fork frequently, 

 in an irregular manner, as they pass to the margin. It is 

 without doubt a vegetable impression, since it leaves a film 

 of coal on the shale which is sharply defined, and cannot 

 possibly be caused by any compression of the shale, as Car- 

 rut hers thinks is the case with Geinitz' s forms, 



Geinitz thought that this fruit was allied to the Palms, 

 while Schimper considered them to represent the Cycas. 

 We have no data that can decide this question. The forms 

 are all orbicular in outline, but vary considerably in size, 

 that drawn being of average size. Some are considerably 

 larger. 



Habitat. — Roof -shales of the Waynesburg Coal, Cass- 

 ville, West Virginia. 



CONIFERS. 



S.A.P0RT^A, gen. nov. 



Leaves simple, subreniform-fiabellate, or suborbicular- 

 cuneate in outline, bordered at the base with a woody rim. 

 which is apparently an extension of the leaf -stalk ; termi- 

 nal margin of the leaves, incised more or less deeply ; petiole 



