A. thelypteroides 
Asplenium thelypteriotdes L. C. Rich.; Michx. 
b.¢. 205. 2 aion, 1.22 233., 50; in Gray lec, 
685. Underw. Nat. Ferns 107. 
Athyrium thelypterotdes Desv. Mem. Soc. Linn. 
Batis. 62 2pt. 260. +Clite, 1c. 195. Valens, \: 
C03 e 
SILVERY WOODFERN. 
Plants 6-10 dm. high; leaves lanceolate; pinnae line- 
ar-lanceolate, acuminate, 7 cm. or less in length, 1 cm. 
wide; ultimate divisions oblong, obtuse, entire or ob- 
scurely dentate. 
Pn most woods . Summer. 
ttt Leaves 2-pinnate to 3-pinnatifid. 
3. A. felix-foemina (L.) Roth. 
Polypodium felix-foemina £.Sp. Pl. 1090. 
Athyrium felix-foemina Roth, 1800, Tent. Flor. 
erm, 365. Clures cur O. Walters ).c.LOye 
Asplenium felix-foemina Bernh. 1806. Schrad. 
Neues Journ. Bot. 1; 2pt. 26. Haton,1.c. 23225. 
t. 76; in Gray Man. 685. Underw. in Ill. Fl.1: 
26; Nat, Perms 167; 1n Britt. 1, c. 12. 
Lapy FERN. 
Plants 4-10 dm. high; leaves clustered at the apex of 
the stout rootstock; pinnae lanceolate, very variable, 
4-7 cm. long, rather distant in typical specimens; pin- 
nules oblong, variously toothed or incised, 1 cm. or less 
in length. | 
36 
