318 PLANT LIFE OF ALABAMA. 



Gray, Man. ed. 6, 689. Chap. Fl. 595. Eaton, Ferns N. A. 1 : 257, t. 35. Underwood, 

 Native Ferns, 111. 



Allegheuian to Louisianian area. Nova Scotia, New Brunswick, Ontario; New 

 England (Mount Desert Island), west to Minnesota, Arkansas, and Missouri, south 

 to Florida and the Gulf coast. 



ALABAMA: Over the State. Rich wooded hillsides. Mobile and Baldwin counties. 

 Common. 



Type locality : " Hah. in Pensylvania, Carolina, et Tennasse'e." 



Herh. Geol. Surv. Herb. Mohr. 



CYSTOPTERIS Bernh. Schrad. Neues. Journ. Bot. 1, pt.2:26. 1806. BLADDER 



. FERN. 



Five species, temperate regions, Europe, western Asia, Mexico; North America 3. 



Cystopteris fragilis (L.) Bernb. Schrad. Neues. Journ. Bot. 1, pt. 2 : 26. 1806. 



BRITTLE FERN. 



Polypodium fragile L. Sp. PI. 2 : 1091. 1753. 



Underwood, Native Ferns, 118. Gray, Man. ed. 6, 689. Chap. Fl. 593. Eaton, Ferns 

 N. A. 2 : 49, t. 53, f. 1-8. Wats. Bot. Calif. 2 : 348. 



Most universally distributed over cooler and temperate regions of the globe from 

 the north arctic zone to Patagonia, South Africa, and Tasmania; northern Europe, 

 and North America up to an altitude of 6,000 to 8,000 feet. 



Arctic zone to Carolinian area. Boreal America to the mountains of Mexico; in 

 the United States to central Georgia, and in the Rocky Mountains and California. 



ALABAMA : Mountain region to Lower hills. In rich woods and shaded damp places. 

 Winston, Cullmau, Lauderdale, and Etowah counties. Bibb County, Pratt's Ferry. 

 Puscaloosa County. Not rare. 



Type locality : " Hab. in collibus Europae frigidioris." 



Herb. Geol. Surv. Herb. Mohr. 



Cystopteris bulbifera (L. ) Bernh. Schrad. Neues. Journ. Bot. 1, pt. 2 : 26. 1806. 



Polypodium bulbiferum L. Sp. PI. 2 : 1091. 1753. 



Gray, Man. ed. 6, 689. Chap. Fl. 594. Eaton, Ferns N. A. 2 : 55, t. 53. Underwood, 

 Native Ferns, 118. 



Canadian zone to Carolinian area. Nova Scotia, New Brunswick, Quebec, Ontario ; 

 New England west to Michigan and Wisconsin, Illinois, Missouri, Arkansas; south 

 from New York along the mountains to Tennessee and North Carolina. 



ALABAMA: Tennessee Valley. . Mountain region, dripping rocks. Lauderdale 

 County, banks of Tennessee River, also Colbert County, near Sheffield. Etowah 

 County, Black Creek Falls, 800 feet (E. A. Smith). Infrequent. 



Type locality: "Hab. in Canada." 



Herb. Geol. Surv. Herb. Mohr. 



ONOCLEA L. Sp. PI. 2 : 1062. 1753. 



Three species found in temperate regions. 

 Onoclea sensibilis L. Sp. PI. 2 : 1062. 1753. SENSITIVE FERN. 



Gray, Man. ed. 6, 690. Chap. Fl. 596. Eaton, Ferns N. A. 2 : 195, t. 72. Under- 

 wood, Native Ferns, 119. 



Alleghenian to Louisianian area. New Brunswick, Ontario to Saskatchewan ; New 

 England (Mount Desert Island), west to Michigan, Minnesota, Dakota, Nebraska, 

 Kansas, Missouri; south through the Ohio Valley to Florida, west to Arkansas. 



ALABAMA: Lower hills to Coast plain. Low woods. Swampy thickets. Most fre- 

 quent in the bottoms of the lower Alabama Riv^er. Baldwin County. Stockton. 

 July to September. 



Type locality : " Hab. in Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



WOODSIA R. Br. Trans. Linn. Soc. 11 : 170. 1816. 



Fifteen species of boreal and cooler temperate zones. 

 Woodsia obtusa (Spreng.) Torr. Cat. PL Geol. Surv. N. Y. 195. 1840. 



Polypodium obtusum Spreng. Auleit. 92. 1804. 



Aspidium obtusum Willd. Sp. PI. 5 : 254. 1810. 



Gray, Man. ed. 6, 691. Chap. Fl. 596. Coulter, Contr. Nat. Herb. 2 : 568. Eaton, 

 Ferns N. A. 2 : 189, t. 71, f. 5-8. Underwood, Native Ferns, 121. 



Canadian zone to Carolinian area. Nova Scotia, British Columbia (source of 

 Columbia River) ; New England west to Michigan, Wisconsin, Nebraska, south to 



