** Lower pinnae unequally triangular-ovate. 
D. spinulosa dilatata (Hoffm.) Underw. 
Polypodium dilatatum FHoffm. 1796. Deutsch. FI. 
PA ES 
Plants 6 dm. more or less in heigth; leaves usually 3- 
pinnate below, oblong-ovate; pinnae (except the lowest 
pair) oblong-lanceolate, 15 cm. or less in length; pin- 
nules oblong, pinnatifid or pinnate, the inferior ones of 
the lowest pair of pinnae much elongated; ultimate seg- 
ments spinulose-dentate or incised. 
White Top Mt., Va., SmadZ. 
19. FILIX Adanson, 1763. 
This name ts the classic name for fern. Adanson 
based his genus on Filix baccifera Corn. canadens. 5. 
( Polypodium bulbtferum L£..) 
Somewhat delicate ferns. Rootstock short and stout 
or long, creeping. Leaves variable, usually 2—3-pinnate, 
thin, membranous. Sori small, Shove at about the 
middle of the veinlets. Indusia delicate. 
1 Leaves bulbtferous, apex attenuate. 
1. F. bulbifera (L.) Underw. 
Polypodium bulbtferum L. Sp. Pl. 1091. 
Cystopterts bulbifera Bernh. 1806, Schrad. Neu. 
Journ. Bot. 1: 2 pt. 26. Hatox, FernsN. Am. 2: 
BS. te 53. tt. 13-17, in Gray, Mau. 689. Uuder. 
tapi: ee 2 esG/ie.. Pems 1212. WVaze7s, 
Ferns 255. 
Filix bulbtfera Underw. 1900. Nat. Ferns 119; 
in Brite Man 17. \ 
46 
