WHITE] NOTES ON CHARACTERISTIC SPECIES. 869 



Adia/itf'tcs teniufollus (Ett.) Stur,^ is also very suggestive of the Amer- 

 ican species. Still another species from the coal fields of southern 

 Europe, Aneimltest {('//ciopfe/'is) rliOiiiljoldea Ett, sp.," whose lateral 

 pinnules are very much like some of those in the Pennsylvania plant, 

 has very different terminals, while the lateral ones are more lanceolate. 

 Ane'niuten potfxi'iUe nsh^ which in the Southern Anthracite field has 

 been found only in the roof of Lykens coal No. 4, appears to consti- 

 tute one of the characteristic species of the upper zone of the Lower 

 Lykens division or Horsepen group (Clark formation), where, in south- 

 western Virginia and West Virginia, it is represented l)v numerous 

 examples either identical or differing but slightlv. The species occurs 

 at the Old Lincoln mine; roof of the Lykens coal No. 4. 



Eremopteris dissecta Lx. 



One of the most interesting species of Eremopteris in the Southern 

 Anthracite field is the Eremopteris dissecta described by Lesquereux'' 

 from the Pottsville series at the Helena mines in Alabama. It is, in 

 general, characteristic of the Sewanee zone in the Upper Division of 

 the Pottsville series. In the Pottsville Gap this species occurs at a 

 horizon probably 380 feet below the Twin coal. 



Eremopteris lincolniana sp. nov. 



PI. CXCII, Figs. 1, la. 



Pinnas compound, somewhat geniculate, very open, slightly lax; 

 penultinate pinnte alternate, open, the lowermost at nearly a right 

 angle or slightly reflexed, the upper somewhat oblique, usually a little 

 distant, rather slender, slightly rigid, though often curved, linear or 

 linear-lanceolate; ultimate pinnae or compound pinnules alternate, very 

 open below, rather oblique above, usually hardh^ touching, generally 

 triangular, the lowest very broadly triangular, approaching a palmate 

 form, the uppermost often rather narrow, very deeply dissected into 

 compound lobes or sulxlivided piiuiules, slightly decurrent at the 

 narrow attachment, and bordering the very slightly flexuose and Aen- 

 trally canaliculate rachis by a narrow wing; subdivisions or com- 

 pound lobes separated to near the rachis, hardly touching, affecting a 

 slightly trifoliate arrangement, inflated, usually rather broadly cuneate 

 or obovate-cuneate, laterally more or less distinctly convex, obtuse or 

 obliquely denticulo-truncate at the apex, or cut, often obscurely, in two 

 or three unequal, short, obtuse teeth, the apical lobes becoming, espe- 

 cially near the apex of the pinna, sublobate or sometimes narrow; 

 lamina not very thick, dull, somewhat inflated between the nerves, and 

 distinctly so at the margins of the normally disposed specimens. 



' Culm-Flora, Vol. I, p. 65, pi. xvi, fig. 7. 

 2Steinkohk'iifl. v. Strarlonitz, 18.52, p. 12, iil. ii, tig. .5. 

 sCoal Flora Atlas, p.9, j)!. liii,lig..l ; le.xt (1880) , p. 293. 



