FERNS. 819 
the Ohio Valley, Missouri, and Arkansas; and from New York along the mountains 
to Georgia, Texas, and Indian Territory. 
ALABAMA: Mountain region. Lower hills. Shaded rocky banks. Bibb County, 
aoa 8 Ferry (Z, A. Smith), Winston County, valley of Colliers Creek, 1,000 feet. 
are. 
Type locality not ascertained. Willdenow’s locality: ‘“ Hab. in Pennsylvania.” 
Herb. Geol. Surv. Herb. Mohr. 
DENNSTAEDTIA Bernh. Schrad. Journ. Bot. 1800, pt. 2:124. 1801. 
(Dicxsonra L’Her. Sertum. Ang]. 30. 1788.) 
About 40 species, both hemispheres, chiefly tropical. 
Dennstaedtia punctilobula (Michx.) Moore, Index Fil. xevii, 307. 1857-62. 
Nephrodium punctilobulum Michx. Fl. Bor. Am. 2: 268. 1803. 
Dicksonia pilosiuscula Willd, Enum. 1076. 1809. 
Dicksonia punctilobula Gray, Man. 628. 1848. 
Gray, Man. ed. 6, 691. Chap. F1.597. Eaton, Ferns N. A. 1: 339, ¢. 44. Underwood, 
Native Ferns, 121. 
Alleghenian and Carolinian areas. Nova Scotia, Ontario, Quebec, New Engiand 
(Mount Desert Island), west to Michigan, southern Illinois, Ohio, and Missouri; 
south from New York along the mountains of North Carolina, Tennessee, and Georgia 
to central Alabama. 
ALABAMA: Mountain region. Central Pine belt, rocky open woodlands. Winston 
County, Colliers Creek, 1,000 feet (7. M. Peters). Bibb County, Pratt’s Ferry (2. A. 
Smith), 450 feet. Infrequent. July, August. 
Type locality: ‘‘ Hab. in Canada.” 
Herb. Geol, Surv. Herb. Mohr. 
TRICHOMANES L. Sp. Pl. 2:1097. 1753. BrisTLE FERN, 
About 90 species, in the tropical and warmer temperate regions of both hem- 
ispheres. 
Trichomanes radicans Sw. Fl. Ind. Occ. 3:1736. 1806. ALABAMA BRISTLE FERN. 
Gray, Man. ed. 6,692. Chap. F1.597. Eaton, Ferns N. A.1:179, ¢. 24, f. 1. Griseb. 
FI. Brit. W. Ind. 655. Underwood, Native Ferns, 122. 
ALMOST COSMOPOLITAN IN TEMPERATE REGIONS. SOUTHERN IRELAND, AZORES, 
East InprEs, Paciric IsLanps, WesT INDIES, MEXICO TO BRAZIL. 
Carolinian and Louisianian areas. Central Kentucky, through the Cumberland 
Mountains to Tennessee and Alabama. 
ALABAMA: Warrior table-land. Central Pine belt. Under the shelter of drip- 
ping rocks. Frequent in the so-called rock houses of the Carboniferous sandstone. 
Winston County, 1,200 feet (7. I. Peters). Franklin County (Beaumont). Marion 
County, Pikeville (Z. 4. Smith). Etowah County, Black Creek Falls, 1,000 feet. 
Lawrence County (Beaumont and Peters). Hale County, Havana (£. 4. Smith). 
Type locality: ‘Incolit arbores in montosis Jamaicae.” 
Herb. Geol. Surv. Herb. Mobr. 
Trichomanes petersii Gray, Am. Journ. Sci. ser. 2,15:326, 1853. 
PrtTeRs’s BRISTLE FERN. 
Chap. F1.597. Eaton, Ferns N. A. 1: 183, t. 24, f. 2. Underwood, Native Ferns, 
122. 
Carolinian area, 
ALABAMA: Mountain region. Warrior table-land. Deep clefts of sandstone 
rock kept perpetually moist by dripping water. Winston County, near east fork of 
Sipsey River, discovered by T. M. Peters, 1853. Etowah County, falls of Black 
Creek, near Gadsden, 1,000 feet. Marion County, Pikeville, in rock houses (£. . 
Smith). Local; rare. Endemic. : : 
Type locality: ‘‘ Hancock [now Winston] County, Alabama, not far from the Sip- 
sey River; found only on the face of an isolated sandstove rock, within reach of the 
spray of a waterfall. 7. Mf. Peters, Esq.” 
Herb. Geol. Surv. Herb. Mohr. 
OSMUNDA L. Sp. Pl. 2:1063. 1753. FLOWERING FERN. 
Six species, chiefly of the north temperate zone, 3 North American. 
Osmunda cinnamomea L. Sp. Pl. 2: 1066, 1753. CINNAMON FERN. 
Gray, Man. ed. 6, 693. Chap. F1.598. Eaton, Ferns N. A. 1:227, t. 29, fi 8-5. 
Underwood, Native Ferns, 124. 
