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Asplenium ebonoides R. R. Scott. Very rare; the 

 only authentic specimens known are those from Hocking 

 County, in the State Herbarium. 



Asplenium parvulum Mart. & Gal. Small Spleen- 

 wort. Represented by specimens collected only recently 

 by Dr. Kellerman in Adams County (on the Ohio River), 

 which is perhaps the most northern station known for this 

 species. 



Asplenium platyneuron (L.) Ebony Spleenwort. 

 Fairly abundant on shaly hillsides all over the State, yet 

 specimens cannot always be secured for the herbarium 

 when wanted. Its former abundance is testified to by 

 the frequent occurrence of isolated plants in localities fav- 

 orable to their preservation. 



Asplenium Trichomanes L. Maidenhair Spleen- 

 wort. Abundant in suitable localities. Since it is limited 

 to limestone and sandstone formations, it is somewhat 

 local in its occurrence. 



Asplenium angustifolium Mich. Narrow-leaved 

 spleenwort. This is to me one of our most beautiful 

 ferns. It is not scarce and is to be found in shady, damp 

 woods throughout the State, but does not stay long after 

 the underbrush has been cleared out. I have had no 

 trouble in securing plenty of fertile fronds with an oc- 

 casional intermediate one, though some collectors report 

 otherwise. 



Asplenium ruta-muraria L. Wall Rue. This ranks 

 with the rare ferns of the State. The single station 

 known for it is in Greene County, and at the present time 

 numbers approximately one hundred plants whose short 

 stiff rootstocks find solid footing in the cracks and crevices 

 of a western exposure of Niagara Limestone. No other 

 fern with which I am acquainted is so exacting in its 

 choice of a home. This station has been under my obser- 

 vation for several years, and quite a number of plants 

 have been collected from it. Just around a corner and 

 not over five feet from the place where strong, vigorous 

 plants grow, not a single plant has been found on a 



