20 PP. EEPOET OF PROGRESS. FONTAINE & WHITE. 



Associated with this limestone, and passing higher in 

 the series, we find incoherent shales, of a brilliant red, or 

 mottled color. These alternate with grey sandstones and 

 shales, and are covered at the top of the series by impure 

 fresh water limestones. 



Flora of the Lower Barren Measures. 



Tliere are but few horizons in these measures which afford 

 plants, and but little examination of these has been made. 

 The most promising, is that about 20 feet below the Pitts- 

 burg coal. This horizon, in the vicinity of Wheeling, West 

 Virginia, has yielded the following plants : 



Neurcpteris : 



Jiirsuta, Lesqx. 



rarinervis, Bunb. 



acutifolia, Brongt. 



flexuosa, Brongt. 



Loschii, Brongt. 



Granger!, Brongt. 

 iSphenopteris : 



furcata, Brongt. 



niinuti-secta, Sp. nov. 

 Pecopteris : 



Pluckeneti, Brongt. 



Bucklandi, Brongt. 



(Alethojjteris, Lesqx.,) spinulosa. 



Candolleana, Brongt. 



notata, Lesqx. 



dentata, ( plumosa form, ) Brongt. 



pteroides, Brongt. 

 Alethoj)(e7'is: 



aquilina, Brongt. 



Sp. nov. allied toA.Gigas of Gei- 

 nitz. 



Lescuroptcris : 



Moorii. (Lesq.); (Sch.) 

 Odontopteris: 



Sp. nov. allied to obtusiloba of 

 Nauraann. 

 An7iula7'ia : 



longifolia, Brongt. 



sphenopbylloides, Ung. 

 Cordaites : 



borassifolius, Ung. 

 Sphenopyhylluyn : 



filiculnie, Lesqx. 



trifoliatum, Lesqx. 

 Asterophylites : 



Sp.? near equisetiformis. 

 Rhacophyllum : 



filJcifornie, Schinip. 

 Calainites : 



cannaelbrniis, Schloth. 

 Syringodendron : 



pes-capreoli, Gein. 



The above list is the result of but slight effort at collect- 

 ing from this jDlant- bearing horizon, and could be largely 

 increased by further search. 



A specimen of Neuropteris hirsuta from this locality, 

 shows six pinnules arranged as tliey would stand when at- 

 tached to a common rachis, which unfortunately has been 

 broken oft' from the stone. The locality is remarkable for 

 the number of fruiting specimens of Pecopterids. Several 

 fruiting leaflets of even Neuropteris hirsuta are found. 



