428 PALEONTOLOGY OF ILLINOIS. 



abnormal division of a terminal leaflet of the same. Found in 

 the whole thickness and over the whole extent of the Coal 

 Measures, especially in connection with coal No. 1 B. Abounds 

 at Murphy sboro, Jackson county, Illinois. 



Neuropteris ClarJcsoni, Lsqx. Geol. Rep. of Penn., p. 857, 

 tab. 6, fig. 1-4. A small specimen from Mazon creek, Grundy 

 county, Illinois; found by Mr. J. Even.* Coal No. 3. 



Neuropteris fiexuosa-, Brgt. Hist, des Veg. Foss., 1, p. 239, 

 tab. 65, fig. 2 and 3, and tab. 68, fig. 2. Abounds at Murphy s- 

 boro. It follows the same distribution as the former. 



Neuropteris rotundifolia, Brgt. Hist. des. Veg. Foss., 1, p. 

 238, tab. 70, fig. 1. Found at Grayville, White county, 111. 

 It is perhaps a variety of the former. Upper Coal Measures. 



Neuropteris plicata, Sternb. Vers., 2, p. 74, tab. 19, fig. 1-3. 

 Locality: Mazon creek, Grundy county, Illinois. Coal No. 3. 



Neuropteris Loscliii, Brgt. Hist, des Veg. Foss., 1, p. 242, tab. 

 73. Locality: Mazon creek. Same position as last. 



Neuropteris vermicular is, Lsqx. Geol. Rep. of Ky., vol. 4, p. 

 434, (pi. 2, fig. 7, ined.) Locality: Mazon creek. Same posi- 

 tion. 



Neuropteris tenuifolia, Brgt. Hist, des Veg. Foss., 1, p. 241, 

 tab. 72, fig. 3. There is in the State Cabinet at Springfield, a 

 specimen of this species, marked Grayville, and another from 

 Colchester. Upper Coal Measures. 



Neuropteris rarinervis, Bunb. PI. 33, fig. 1 to 5, and PI. 34, 

 fig. 1 and 1 a. This species has a tripinnate or polypinnate 

 frond; secondary pinnse alternate, long, linear or linear-lance- 

 olate ; pinnules alternate, contiguous or distant, oblong, obtuse, 

 cordate and somewhat dilated at the base, with the exterior 



* To prevent the necessity of numerous repetitions, I will state once for all, that all 

 the specimens indicated from Mazon creek, Grundy county, were communicated by 

 Mr. Joseph Even, and found in iron-stone concretions. 



