CRYPTOGAM IA FILICES. Aspidium. 063 
Poly podium Filix mas. Sp. pl. 1551. 
Polyslichum Filix mas. Roth.jl. germ. 3. p. 82. 
Icon. Schkuhr filic. t. 44. Bolt.Jilic. t. 24. Moris, hist. 3. 
s. 14. t . 3 ./ 6. 
jS.A. pinnulis eroso-serratis vernonoiibus.— -Schkuhr Jilic. erosum. 
t. 45. 
In shady pine forests : New Jersey to Virginia. (3. in 
Carolina. 7/. July. v. v. From two to three feet 
high $ the leaflets are more obtuse, and more fre- 
quently doubly serrated, than in the European plant. 
10. A. frondibus bipinnatis, pinnulis linearibus pinnatifido- intermedium . 
incisis, laciniis apice submucronato-serratis, stipite pa- 
leaceo. Willd. sp. pi. 5. p. 202. 
In Pensylvania. Muhlenberg. 7/ . + • Resembles the 
following in several respects very much. 
1 1. A. frondibus bipinnatis, pinnulis oblongis decurrentibus spinulosunv 
confluentibus inciso-dentatis, laciniis mucronato-serra- 
tis, stipite paleaceo, indusiis glandulosis, Willd. sp. 
pi. 5. p. 262. 
Polypodium spinulosum. Retz. prodr. jl. scand. n. 1205. 
Polypodium cristatum. Hojfm.jl. germ. 2. p. 8. 
Polystichum spinosum. Roth. Jl. germ. 3. p.Q 1. 
Icon. Schkuhr Jilic. t. 48. FI. dan. / 0 7 . Fr. Mill, 
icon. t. 2.f. 2. 
In shady woods, in fertile soil : Pensylvania to Virginia. 
7/ . July. v. v. A large species. 
32. A. frondibus bipinnatis, pinnulis oblongis distinctis pin- dilatatum . 
natifido-incisis, laciniis mucronato-serratis, stipite pa- 
leaceo, indusiis laevibus. Willd. sp. pl. 5. p. 263. 
Polypodium dilatatum. Hqffm.jl.germ. 2. p. 7 . 
Poly podium aristatum. Villars jl. delph. 3. p. 844. 
Polypodium cristatum. Huds. angi. 45J. 
Polystichum multiflorum. Roth.jl. germ. 3 .p. 87« 
Nephrodium cristatum. Mich.fl. amer. 2. p. 2 69 . 
Icon. Schkuhr ^ Jilic. t. 47 . Bolt, jilic. t. 23. Fr. Mill . 
ic. t. 2 . f. 4. Pluk. aim. t. 3 81. jC 2. 
In shady rocky woods : Pensylvania and Virginia. if . 
July. v. v , Resembles A. Filix femina j it is larger, 
broader, and more compound in its leaves. 
***** Frondibus bipinnatis tnplicato-pinnatisve ; indusiis 
lateralibus. 
13. A. frondibus bipinnatis oblongo-lanceolatis, pinnulis op- bulbiferUm , 
positis oblongis obtusis serratis, inferioribus pinnatifi- 
VQL. 11. x 
