PLiAiNTS OF SOUTHERN NEW JERSEY. 135 



Spores Mature. — ^Early June to early July, indusia soon with- 

 ering. Fronds evergreen, persisting with large brown sori over 

 the winter. 



Middle District. — Farmingdale, Bordentown, Riverton (UP), Birmingham, 

 Camden (P), Woodbury, Mickleton (C),* 5 mi. S. of Swedesboro (CDL). 



Dryopteris spinulosa (Retz.). Spinulose Shield Fern. 



Polypodium spinulosa Retzius, Fl. Scand. Ed. 2. 250. 1795 [Scandinavia]. 



Common northward, south locally in the Middle district. 

 Spores Mature. — Mid-May to early June ; indusia soon wither- 

 ing. Fronds barely persisting to the beginning of winter. 

 Middle District. — New Egypt, Glassboro, Mickleton. 



Dryopteris spinulosa intermedia Muhl. Spinulose Shield Fern. 



Aspidium intermedium "Muhlenberg" Willdenow, Sp. PI. V. 262. 1810 



[Pennsylvania]. — Barton II. 208. 

 Aspidium spinulosum var. intermedium Britton 309. 

 Dryopteris spinulosa Saunders, Proc. Acad. Nat. Sci., Phila., 1900, p. 548. 



Common northward, south locally in the Middle district and 

 rarely on the coast, to Cape May. 



Spores Mature. — Mid-May to early June; indusia soon with- 

 ering. Sterile fronds evergreen, but fertile fronds mostly perish 

 during the winter. 



Middle District. — Farmingdale (S), Pt. Pleasant, Bordentown, Hartford, 

 Birmingham, Berlin, Atco (C), Woodbury (UP), Swedesboro, Yorktown. 

 Coast Strip. — Cox's. 

 Cape May.— Cape May (OHB). 



FILIX Adanson. 

 Filix fragilis (Linn.). Brittle Fern. 



Polypodium F[ilix]-fragile Linnaeus, Sp. PI. 1091. 1753 [Europe]. 

 Cysfopteris fragilis Britton 310. 

 Filix fragilis Keller and Brown 14. 



Common northward, but known within our limits only from 

 Freehold (Willis), from Medford, where it was discovered 

 May 30, 1903, by Mr. Stewardson Brown growing on the vertical 

 bank of a small stream in deep woods, and from Pitman in a 

 similar situation discovered by Mr. Bayard Long. 



* Dr. Harshberger's specimen reported from Seaside Park (Proc. Acad. 

 Nat. Sci., Phila., 1900, 623) proves to be Osmunda cinnamomea. 



