312 HARPER 



PTERIDIUM Scop... PI. Cam. 169. 1760. 

 P. aquilinum pseudocaudatum Clute, Fern Bull. 8:39. 1900. 

 (as syn.) 



Chiefly in dry pine-barrens, less frequently in hammocks or 

 on sand-hills or rocks. Common throughout, and often 

 abundant. 



Long Island to Florida and Texas. 



MARGINARIA Bory, Diet. Class. Hist. Nat. 6 : 587. 1824. 

 M. polypodioides (L.) Tidestrom, Torreya 5 : 171. 1905. 



Poly podium incanum Sw. 



(For other synonyms see Tidestrom, 1. c.) 



On angiospermous trees in swamps and hammocks, also on 

 projecting ledges of Altamaha Grit, tattnall, Montgom- 

 ery, dodge, telfair, coffee, berrien. Scattered all over 

 the state. 



Widely distributed in the Southeastern United States and 

 tropical America. 



OSMUND ACE JE. 

 OSMUNDA L., Sp. PI. 1063. 1753. 

 0. spectabilis Willd. Sp. PI. 5:98. 1810; Underw., Torreya 

 3 : 17- i9°3- 



In various kinds of swamps; rather 'rare. Montgomery, 



irwin, berrien, colquitt. Scattered over the state. 

 Nearly throughout temperate Eastern North America. Closely 

 related to the European 0. regalis L. 

 O. cinnamomea L., Sp. PI. 1066. 1753. 



Moist pine-barrens, branch-swamps, sand-hill bogs, etc.; com- 

 mon in most of the counties in our territory, and in all other 

 parts of Georgia. 

 Throughout the Eastern United States. 

 OPHIOGLOSSACE^E. 

 BOTRYCHIUM Sw., Schrad. Neues Jour. Bot. 1800 2 : no. 1801. 

 B. obliquum Muhl. ; Willd., Sp. PI. 5:63. 1810. 



berrien: Rich damp woods near Tifton, Sept. 29, 1902 

 More frequent in Middle Georgia, but nowhere abundant. 

 Widely distributed in the Eastern United States. 



