XOR TH A ME RICA N FERNS— MA XOX. 6 -t 3 



ONOCLEA L. Sp. V\. loCi^ 1753. 



Onoclea sensibilis L. Sp. PI. 1062. ITo^. Skksitivk fkrx. Oak- 

 leaved EEEN. 



Newfoundland to Saskatchewan, south to Nebraska, Louisiana, and Florida. 

 The var. obtusilobata of Torrey comprises plants of which one or more of the 

 fertile fronds are more or less foliose. 



MATTEUCCIA Todaro, 8yn. PI. Acot. Vase. Sicilia 3t). 1866. 



Matteuccia struthiopteris (L.) Todaro, Syn. PI. Acot. Vase. Sicilia 30. 



1860. 



Osmunda struthiGpteris L. Sp. PI. 1066. 1753. 



iStruthio2)(eris gerrnanica^Yi\ld. p]num. PI. Hort. Bot. Berol. 1071. 1809. 

 OnocJea strnthiopterk Hoffm. Deutsch. Fl. 2 : 11. 1795. 

 Nova Scotia to Virginia, west to Iowa and British Columbia. 



WOODSIA R. Br. -Prodr. Fl. Nov. Holl. 1 : 158. 1810. 

 Woodsia ilvensis (L.) P. Br. Prodr. Fl. Nov. Holl. 1 : 158, 1810. Rusty 



AVOODSIA. 



Acrostichiim ilvense L. Sp. PL 1071. 1753. 

 Labrador to Alaska, south to North Carolina, Kentucky, and IMinnesota. Also 

 in Greenland. 



Woodsia alpina (Bolton) S. F. Gray, Nat. Arr. Brit. PI. 2 : IT. 1821. 

 Alpine woodsia. 



Acrostichum alpimim Bolton, Fil. Brit. 76. ^J?. 4~- 1790. 



Acrosiichum hyperboreum Liljeb. Kongl. Vetensk. Akad. Nya Handl. 14 : 201. 



1793. 

 Woodsia hyperhorea E. Br. Prodr. Fl. Nov. Holl. 1 : 158. 1810. 

 Labrador to Alaska, south to Elaine, Vermont, northern New York and western 



Ontario. Also in Greenland. 



Woodsia glabella R. Br. App. Frankl. Joitrn. 751. 1823. 



Central New York and Vermont to New Brunswick, westward in Canada to Brit- 

 ish Columbia, northward to Alaska and Mackenzie. Also in (Jreenland. 



Woodsia scopulina D. C. Eaton, Can. Nat. II. 2 : 01. 1865. 



INlichigan and western Ontario to British Columliia, soutli in the mountains to 

 Arizona and California. Also in Alaska. 



Woodsia oregana D. C. Eaton, Can. Nat. 11. 2 : 00. 1865. 



British Columbia and Athabasca, to INIanitoba, Nebraska, Oklahoma, Colorado, 

 Arizona, and California. Also in "Wisconsin and northern Michigan. 



Woodsia obtusa (Spreng.) Torr. Cat. PI. in Geol. Rep. N. Y. 195. 1840. 

 Polypodium obtusum Spreng. Anleit. Kennt. Gewiichse ed. 1. 3 : 92. 1804. 

 Nova Scotia to "Wisconsin and Nebraska, south to Georgia, Alabama, and Texas. 

 Also in Alaska and British Columbia. 



