NO. 1228. NORTH AMERICAN FERNS— MAXON. 639 



Dryopteris unita (L.) Kuntze, Rev. Gen. PI. 2 : 811. 1891. 



I'(}b/]>oiUaiJi uiiitnm L. 8p. PI. ed. 2. 1546. 1764. 



A)<pi(lium unitum var. glahm Mett. Ann. ]Mus. Bot. Ludg. But. 1 : 230. 1863-64. 

 Not Aspidium glabrum Mett. Abh. Senck. Nat. Gesell. 2 : 343. 1856-58. 

 Florida. 

 Dryopteris fragrans (L.) Schott, Gen. Fil. 1S3-1-. Fkagkaxt Fern. 



I'uhjpodinin Jraijrans L. Sp. PI. 1089. 1753. 

 Aspidiuni fragram Sw. Schrad. Journ. Bot. 1800^ : 35. 1801. 

 Labrador to Alaska, south to Maine, New Hampshire, Vermont, New York, 

 Wisconsin, and Minnesota. Also in Greenland. 



Dryopteris aquilonaris Maxon, Bull. Torr. Cliil) 27 : 038. lUOO. 



Cape Nome, Alaska {Flelt). 

 Dryopteris floridana (Hook.) Kuntze, Rev. Gen. PI. 2 : 812. 1891. 

 NepJiruiJiiunJiuvldanum Hook. Fil. Exot.p?. 99. 1859. 

 Aspidium floridanum D. C. Eaton in Chapm. Fl. So. U. S. ed. 1. 595. 1860. 

 Florida and Alabama. 

 Dryopteris cristata (L.) A. Gray, Manual ed. 1. 031. 1818. Crest fern. 

 Crested shield fern. 



Folypodium cristatiun L. Sp. PL 1090. 1753. 

 A.spidium cristatiun Sw. Schrad. Journ. Bot. 1800'- : 37. 1801. 

 Newfoundland to Saskatchewan, south to Virginia, Arkansas, Nebraska, and 

 Idaho. 

 Dryopteris cristata clintoniana (D. C. Eaton) Underw. Our Native Ferns 



ed. 1. 115. 1893. 



Aspidium cristatnm var. cliatoniamini D. C. Eaton in A. Gray, Manual ed. 5. 665. 

 1867. 

 Maine and Ontario to Wisconsin, south to Virginia ( Wm. Falmcr). 



Dryopteris goldiana (Hook.) A. Gray, Manual ed. 1. 031. 1818. Goldie's 



FERN. 



Aspidium goldianum Hook. Edinb. Phil. Journ. 6 : 333. 1822. 

 New Brunswick to IMinnesota, south to North Carolina, Tennessee, and Iowa. 



Dryopteris goldiana celsa Palmer, Proc. Biol. Soc. Wash. 13 : 0.5. ^>/. 1. 



/. 1-6'. S-12. 1899. Log fern. 



Dismal Swamp, Virginia {Win. Fcdmcr; FartscJi.). 

 Dryopteris filix-mas (L.) Schott, Gen. Fil. 1831. Male fern. Sweet 



FERN. 



Polypodium filix-mas L. Sp. PL 1090. 1753. 

 Aspidium filix-mas Sw. Schrad. Journ. Bot. 1800- : 38. 1801. 

 Nova Scotia and Newfoundland to Alaska, south to Michigan, South Dakota, 

 Arizona, and California. 

 Dryopteris cristata X marginalis Davenp. Bot. Gaz. 19: 197. 1891, as syn. 

 Aspidium cristatum X margiiiale Davenp. Bot. Gaz. 19 : 494. 1894. 

 All the New England States and New Jersev. Probably of wider distril)ution. 



Dryopteris marginalis (L.) A. Gray, Manual ed. 1. 032. 1818. Mar- 

 ginal SHIELD fern. Rock fern. Wood fern. 



Polypodium viarginale L. Sp. PL 1091. 1753. 

 Aspidium viarginale Sw. Syn. Fil. 50. 1806. 

 Nova Scotia to British Columbia, south to Indian Territory, Arkansas, Alabama, 

 and Georgia. 



