NO. 1228. NORTH AMERICAN FERNS— MAXON. 631 



Adiantum tenerum Sw. Fl. Incl. Occ. 3 : 1719. 1806. 



Florida. 

 Adiantum jordani C. Miill. ; Kuhn, Juhrl). Kon. Bot. Gart. Berlin 1 : lUG. 



issl. 



Adiantum emargimdum Hook.; T). C. Eaton, Ferns N. Am. 1 : 285. pi, 38. f. 1-3. 

 1879, not Bory. 

 California, New Mexico, Nevada, and Oregon. 



Adiantum tricholepis Fee, 8'"*^ Mem. Fain. Foug. 72. 185-1-57. 

 ^^'t^<tern Texa^^ and New ^lexico. 



Adiantum pedatum L. Sp. PI. 1095. 1753. MAiDENHAiif. * 



Nova Scotia to British Columbia, south to Georgia, Mississippi, Arkansas, Kansas, 

 Utah, and California. Also in Alaska. 



PTERIS L. Sp. PI. 1073. 1753. 



Pteris longifolia L. Sp. PI. 1071. 1753. 



Florida. 



Fteris cretica L. Mant. 1 : 130. 1767. 



Florida. Naturalized locally in Illinois. 



Pteris serrulata L. f. Suppl. PI. 1:15. 1781. Ribbon fekn. Spider fekx. 

 Saw-leaved bracken. 



Alabama, Georgia, and South Carolina. Probably escaped from cultivation. 



PTERIDIUM Scop. Fl. Cam. ed. 1. 169. 1760. 



Pteridium aquilinum (L.) Kuhn in Decken'« Pei.sen III. Bot. Ost- 

 Afrika 11. 1879. Brake. Bracken. Eagle fern. Umbrella 

 fern. Hog brakes. 



Pteris aquUina L. Sp. PI. 1U75. 1753. 

 Newfoundland and northern (Quebec to northern Alabama, Missouri, and 

 Manitoba. 

 Pteridium aquilinum pseudocaudatum Clute, Fern. Bull. 8 : 3',t. l;»0(i. us 

 syn. 

 Long Island, New York, to northern Florida, Alabama, an<l Texas, l)ut mainly 

 confined to territory near the coast. 



Pteridium aquilinum pubescens Underw. Our Native Ferns ed, 6. t>l. 

 19(>0. 



I^eris aquilina lanuginosa of American authors. Not Pteris lanuginosa Bory; 

 AVilld. Sp. PI. 5 : 403. 1810. 

 Arizona and California to British Columl)ia. 



Pteridium caudatum (L.) Maxon, com)), nov. 

 Beris cnudata L. Sp. PI. 1075. 1753. 

 Pteris aquilina var. caudata Hook. Sp. Fil. 2 : 196. 1858. 

 Southern Florida. 



* Includes the var. rangiferinuin Burgess, Proc. Roy. Soc. Canada 4' : 11. 1887, an 

 extreme form of the Pacific coast material, the most of which })robably represents a 

 species distinct from A. pedatum. 



