82 LACKAWANNA AND WYOMING FLORA. 



CRYPTOGAMS. 



103. EQUISETACE^:. 



EQUISETUM, L 



932. E. arvense, L. COMMON HORSETAIL. Common in gravelly soil 

 in valley bottoms. 



933. E. limosum, L. Near Pocono Station. Prof. Porter. At Dunn's 

 Pond, Wayne Co. Dtidley. 



934. E. hyemale, L. SCOURING RUSH. Occasional. Tompkinsville. 

 Graves. Abundant in grove by the river above Kingston. Thurston. 



104. FILICES. 



POLYPODIUM, L. 



935. P. vulgare, L. POLYPODY. Common on rocks. 



ADIANTUM, L. 



936. A. pedatum, L. MAIDEN-HAIR FERN In moist woods, common. 



PTERIS, L. 



937. P. aquilina, L, COMMON BRAKE. Common. 



PELL/EA, LINK. 



938. P. atropurpurea, Link. CLIFF-BRAKE. Sandstone ledges above 

 Taylorville; Elk Mt.; Campbell's Ledge, in herb. Dudley. 



ASPLENIUM, L. 



939. A. Trichomanes, L. Frequent on rocks. 



'940. A. ebeneum, Ait. Frequent, on nearly every cliff. 

 941. A. montanum, Willd. MOUNTAIN SPLEENWORT. On the 

 southern cliffs on Bald Mountain Summit ; cliff at falls of Black River. 

 It is not found further north than the Shawangunk Mts. in New 

 York. Dudley. 



This has been found in Pennsylvania only on the Susquehanna be- 

 low Harrisburg, on the Delaware at Easton, and at Glen Onoko, on 

 the Lehigh. Prof. Porter, 1886. 



