316 PLANT LIFE OF ALABAMA. 



Asplenium acrostichoides Sw. Schrad. Journ. Bot. 1800, pt. 2 : 54. 1801. 



SILVERY SPLEENWORT. 



Asplenium theli/pteroides Michx. Fl. Bor. Am. 2 : 265. 1803. 



Gray, Man. ed. 6, 685. Chap Fl. 593. Eaton, Ferns X. A. 2:33, t. 50. Under- 

 wood, Native Ferns, 107. 



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

 Superior; Ontario; New England to Minnesota, south along the mountains to 

 Georgia; rare. 



ALABAMA: Mountain region. Rich woods. Winston County (Underwood). 



Type locality not given. Michaux's locality: " Hab. in montibus Virginiae et 

 Carolinae septentrionalis." 



Herb. Geol. Surv. Herb. Mohr. 



CAMPTOSORUS Link, Hort. Berol. 2 : 69. 1833. WALKING LEAF. 



Two species, one North American. 

 Camptosorus rhizophyllus (L.) Link, Hort. Berol. 2 : 69. 1833. 



Asplenium rhizophylla L. Sp. PI. 2 : 1078. 1753. 



Gray, Man. ed. 6, 685. Chap. Fl. 591. Eaton, Ferns N. A. 1 : 55, t. 8, f. 1. 



Alleghenian and Carolinian areas. Ontario and Quebec to the Saskatchewan ; New 

 England west to Wisconsin, Missouri. Kansas, and Arkansas; south through the Ohio 

 Valley to Tennessee, and along the mountains from Virginia to North Carolina and 

 Georgia. 



ALABAMA : Mountain region to Central Pine belt. Shaded rocky banks. Cullman 

 County ( Miss Mary Mohr). Hale County (E. A. Smith). Infrequent. 



Type locality : "Hab. in Jamaica, Virginia, Canada, Siberia." 



Herb. Geol. Surv. Herb. Mohr. 



PHEGOPTERIS Fee, Gen. Fil. 242. 1850-52. BEECH FERN. 

 Ninety-five species, mostly of north temperate zone. 



Phegopteris hexagonoptera (Michx.) Fe"e, Gen. Fil. 243. 1850-52. 



BEECH FERN. 



Polypodium hexagonopterum Michx. Fl. Bor. Am, 2 : 271. 1803. 



Gray, Man. ed. C, 686. Chap. Fl. 588. Eaton, Ferns N. A. 2 : 147, t. 56. 



Alleghenian and Carolinian areas ; South Ontario; New England west to Minne- 

 sota, Arkansas, and Missouri ; south to the mountains of North Carolina and Georgia. 



ALABAMA: Tennessee Valley. Mountain region to Lower hills. Rich woodlands. 

 Cullman County; Tuscaloosa County ; Lauderdale County, near Florence. Not rare. 



Type locality: "Hab. in Carolina et Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



DRYOPTBRIS Adans. Fam. PI. 2 : 20. 1763. SHIELD FERN. 

 (ASPIDIUM Sw. Schrad. Journ. Bot. 1800, pt. 2 : 4. 1801). 



About 300 species, mostly of tropical and subtropical regions. North America, 17; 

 Pacific States, 5; Northern States, Rooky Mountains, and Canada, 13; Southern 

 States, 7. 



Dryopteris thelypteris (L.) Gray, Man. 630. 1848. MARSH SHIELD FKRN. 



Acrostichnm thelypteris L. Sp. PL 2 : 1071. 1753. 



Aspidium thelypterix Sw. Schrad. Journ. Bot. 1800, pt. 2 : 40. 1801. 



Gray, Man. ed. 6, 686. Chap. Fl. 594. Eaton, Ferns N. A. 1:233,*. 50. Coulter, 

 Coutr. Nat. Herb. 2 : 567. Underwood, Native Ferns, 114. 



EUROPE, SIBERIA, NORTHERN ASIA, HIMALAYAN INDIA. 



Canadian zone to Louisianian area. Nova Scotia, Quebec, Ontario to Lake Win- 

 nipeg, Manitoba; throughout the Eastern States from New England to Florida, and 

 west to Texas, Arkansas, and Missouri. 



ALABAMA: Coast plain. Open swamps. Mobile. Montgomery County; abundant. 



Type locality: " Hab. in Europae scptentrionalioris paludibus." 



Herb. Geol. Surv. Herb. Mohr. 



Dryopteris noveboracensis (L.) Gray, Man. 630. 1848. 



NEW YORK SHIELD FERN. 



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



Aspidium noreboracense Sw. Schrad. Jouru. Bot. 1800, pt. 2 : 38. 1801. 



Gray, Man. ed. 6, 637. Chap. Fl. 594, Eaton, Ferns N. A. 1:49, t. 7, Underwood, 

 Native Ferns, 112. 



