318 PLANT LIFE OF ALABAMA. 
Gray, Man, ed. 6, 689. Chap. F1.595. Eaton, Ferns N, A. 1:257, ¢.39. Underwood, 
Native Ferns, 111. 
Alleghenian to Lonisianian 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: Overthe State. Rich wooded hillsides. Mobileand Baldwin counties. 
Common. 
Type locality: “ Hab, in Pensylvania, Carolina, et Tennassée.” 
Herb. 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 (I..) Bernh. Schrad. Neues. Journ. Bot. 1, pt.2:26. 1806. 
BRITTLE FERN. 
Polypodium fragile L. Sp. Pl. 2:1091. 1753. 
Underwood, Native Ferns, 118, Gray, Man. ed. 6, 689. Chap. F1.593. Eaton, Ferns 
N.A. 2:49, t. 53, f. 7-8 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, Cullman, Lauderdale, and Etowah counties. Bibb County, Pratt’s Ferry. 
Tascaloosa County. Not rare. 
Type locality: “ Hab. in collibus Kuropae frigidioris.” 
Herb. Geol. Surv, Herb. Mohr. 
Cystopteris bulbifera (L.) Bernh. Schrad, Neues. Journ. Bot. 1, pt. 2:26, 1806. 
Polypodium bulbiferum L. Sp. P1.2:1091. 1753. 
Gray, Man. ed.6, 689, Chap, F591. Eaton, Ferns N.A.2:55, 6.53. 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 Sheftield. Etowah 
County, Black Creek Falls, 800 feet (2. 4. Smith). Infrequent. 
Type locality: ‘‘ Hab. in Canada.” 
Herb. Geol, Surv. Herb, Mohr. 
ONOCLEA L. Sp. Pl. 2:1062. 1753, 
Three species found in temperate regions. 
an] 
175! 
Onoclea sensibilis L. Sp. Pl. 2: 1062. 1753. SENSITIVE FERN, 
Gray, Man. ed. 6, 690. Chap. Fl. 596. Eaton, Ferns N. A. 2:195,4.72. 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 River. Baldwin County, Stockton. 
July to September. 
Type locality: “Hab. in Virginia.” 
Herb, Geol. Surv. Herb. Mohr. 
WOODSIA R. Br. Trans. Linn. Soe, 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, Anleit. 92. 1804. 
Aspidium obtusum Willd. Sp. Pl. 5: 254. 1810. 
Gray, Man. ed.6,691. Chap. F1.596. Coulter, Contr. Nat. Herb, 2:568, Eaton, 
Ferns N. A. 2:189, ¢. 77, /.5-8. Underwood, Native Ferns, 121, 
Canadian zone to Carolinian area, Nova Scotia, British Columbia (souree of 
Columbia River); New England west to Michigan, Wisconsin, Nebraska, south to 
