** Lower pinnae unequally triangular-ovate. 
D. spinulosa dilatata (Hoffm.) Underw. 
Polypodium dilatatum Hoffm. 1796. Deutsch. Fl. 
PA 
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., Small. 
19, FILIX Adanson, 1763. 
This name ts the classic name for fern. Adanson 
based his genus on Filix baccifera Corn. canadens. 5. 
( Polypodium bulbiferum LZ.) 
Somewhat delicate ferns. Rootstock short and stout 
or long, creeping. Leaves variable, usually 2—3-pinnate, 
thin, membranous. Sori small, situated at about the 
middle of the veinlets. Indusia delicate. 
t+ Leaves bulbtferous, apex attenuate. 
1. F. bulbifera (L.) Underw. 
Polypodium bulbiferum L. Sp. Pl. 1091. 
Cystopterts bulbifera Bernh. 1806. Schrad. Neu. 
Journ, Bot. 1: 2 pt. 26. Haton, FernsN. Am. 2: 
55. t. 53. ff. 13-17; in Gray, Mau. 689. Uuder. 
iy Et 22 Ofuie, Merns) 2121 + Waters, 
Ferns 255. 
L[ilix bulbifera Underw. 1900. Nat. Ferns 119; 
in Britt, Man. 17. 
46 
