370 MINNESOTA BOTANICAL STUDIES. 



Woodsia oregana D. C. Eaton, Can. Nat. 2 : 90. 1865. 

 Coll. : L3-on 306, Jefferson. Aug. 

 Rare and local, on brow of river bluff. The only previous 

 collection reported from Minnesota is that from Stillwater 

 by Miss Field. There are no previously collected speci- 

 mens from Minnesota in the Herbarium of the University. 



Cystopteris bulbifera (L.) Bernh. Schrad. Neuesjourn. Bot. 

 I : Part 2, 26. 1806. 

 Coll. : Lyon 57, Winnebago. June. 

 Common on shaded rocks and limestone ledges. 

 Cystopteris fragilis (L.) Bernh. Schrad. Neues Journ. Bot. 

 I : Part 2, 27. 1806. 

 Coll. : Lyon 221, Ma3-ville. July. 

 Frequent in deep woods. 



Dryopteris tbelypteris (L.) A. Gray, Man. 630. 1848. 

 Coll. : Lyon 461, Brownsville. Aug. 

 Common in swamps and wet meadows along Wild Cat creek. 



Dryopteris goldieana (Hook.) A. Gray, Man. 631. 1848. 

 Coll. : Lyon 203, 222, Mayville. July. 

 Rare and local, deep rich woods. The only previous 

 authentic collection in Minnesota is that of Leiberg at Min- 

 neopa falls, Blue Earth County. 



Dryopteris spinulosa (Retz.) Kuntze, Rev. Gen. PI. 813. 

 1891. 

 Coll. : Lyon 2531^, Mayville. July. 

 Rare and local, deep rich woods. 



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



1833- 

 Coll. : Lyon 32, 65, Winnebago. June. 

 Infrequent or rare, limestone ledges and boulders. 



Asplenium angustifolium Michx. F1. Bor. Am. 2 : 265. 1803. 

 Coll. : Lyon 204, 224, Mayville. July. 

 Rare, deep rich woods. Not previously reported from 

 Minnesota. 



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

 1800. 

 Coll.: Lyon 206, 223, Mayville; 318, Jefferson. July 

 Aug. 

 Frequent, rich woods and moist thickets. 



