Robust ferns. Rootstocks creeping, usually covered by 
the persistent leaf -bases. Leaves various. Sori more or 
less curved. 
t Leaves pinnate, 
1. A. pycnocarpon (Spreng.) 
Lonchitis maxima foliis plants u e, non dcnta- 
tls . . Banist. ; Ray, Hist. 2 : 1927. 
Asplenlum angustlfollMm C. ; Michx. 
FL 2: 265. not Jacquin, 1786. Eaton^ Ferns 
N. Am. 2 : 73. t. 56. ff. 1-3 ; in Gray, Man. 
585. Undervj, in 111. Fl. i : 24 ; Nat. Ferns 105 ; 
in Britt. Man. 12. Clute^Y^xw% 187. Waters,, 
Ferns 159. 
A, pycnocarpo7i Spreng, 1804. Anleit. 3: 112. 
WOODFERN. 
Plants about 9 dm. high; pinnae on the sterile leaves 
stipitate, oblong-lanceolate, 2-9cm. 1., 0.5-1.5 cm. wide; 
fertile pinnae 1-6 cm. 1., 6 mm. or less wide. 
In rich woods ; rather r a re . Summer. 
tt Leaves 2-plnnatlf Id, 
A. thelypteroides (L. C. Rich.) Desv. 
Asplenlum acrostlcholdes Sw, Schrad. Journ. 
I^ot. 1800 : 2 pt. 54. Underw, in 111. Fl. i : 26 ; 
in Britt. 1. c. 12. 
36 
