GENUS I. 
POLYPODIUM, Linnams 
POLYPODY. 
GENERIC CHARACTER. Sori circular naked, ter- 
minal or subterminal on the back of the veins. Veins 
free ; midvein distinct ; venules simple or forked. 
The type of this genus is the common Polypodium vul- 
gare, -which Xewman injudiciously and unnecessarily 
separates from Polypodium, and proposes as a new genus 
with Blume's sectional name Ctenopteris. The other 
species do not indeed well associate with this, but in the 
absence of satisfactory distinctive characters, it is better 
not to disturb them. 
The name is derived from poly many, and pous, 
podos a foot ; from the many foot-like divisions of the 
candex. 
i. Polypodium vulgare, Linnaeus. Common 
Polypody. Fronds deeply pinnatifid, linear-oblong 
acuminate, lobes broad linear obtuse or acute, obscurely 
serrate, the upper smaller. 
POLTPODIUM VCLGARE, Linn.Tns : Engr. Bot. t 1149 : Sm. 
Eng. Fl. iv. 267 : Hook and Arn. Fl. 56fi : Bab. Man. 408 : Florig. 
Brit. iv. 37: Newm. Ill: Franc. 21. CTIXOPTEBIS VULGABIS 
Ne-wm. App. xxix- 
