Lyon: the pteridophytes of Minnesota. 251 



Herb.: Holzinger, Winona; Rosendahl, Lyon, Houston 

 county ; Sandberg, Cannon Falls ; Leiberg, Blue Earth county ; 

 Sheldon, Taylors Falls ; Lyon, Hastings. 

 Y Asplenium platyneuron (L.) Oakes ; D. C. Eaton, Ferns N. 

 A. i : 24. 1879. Ebony spleenwort. 

 Reported from Taylor's Falls by Upham but there are no 

 specimens in the herbarium to verify the report. 

 Asplenium trichomanes (L.) Sp. PI. 1080. 1753. Maiden- 

 A hair spleenwort. 



Reported by Upham as occurring at Taylor's Falls and Lake 

 Pepin. Rare. 



Herb. : Nelson, Vasa, Goodhue county. 

 \Asplenium angustifolium Michx. Fl. Bor. Am. 2: 265. 1803. 

 Narrow-leaved spleenwort. 

 Known to occur in but one locality. 

 Herb. : Lyon, Mayville, Houston county. 

 Asplenium acrostichoides Swz. Schrad. Journ. Bot. 2 : 54. 

 1800. Silvery spleenwort. 

 Asplenium thelypteroides Michx. Fl. Bor. Am. 2: 265. 

 1803. 

 Infrequent in eastern portion of state. 

 Herb. : Sheldon, Mora; Lyon, Houston county. 

 ^Asplenium filix-fcemina (L.) Bernh. Schrad. Neues Journ. 

 Bot. I : Part 2, 26. 1806. Lady-fern. 

 Common in woodlands throughout the state. 

 Herb. : A large number of specimens. 

 Camptosorus rhizophyllus (L.) Link, Hort. Berol. 2 : 69. 

 tX 1833. Walking-fern. 



Infrequent. Occurring in widely separated localities on dry 

 limestone rocks. 



Herb. : Sandberg, Goodhue county ; Rosendahl, Fillmore 

 county; Lyon, Houston county ; Lyon, Hastings. 

 Phegopteris phegopteris (L.)Underw. ; Small, Bull. Torr. Club, 

 20: 462. 1893. Long beech-fern. 

 Phegopteris ■polypodioides Fee, Gen. Fil. 243. 1850-52. 

 Common in northern Minnesota in moist woods and on shaded 

 banks. 



Herb. : Sheldon, Waldo ; Roberts, north shore of Lake Su- 

 perior ; Bailey, Basswood lake, Agate bay and Vermilion lake. 

 Phegopteris hexagonoptera (Michx.) Fee, Gen. Fil. 243. 1850- 

 52. Broad beech-fern. 



