55 
A TABLE OF THE 
SPECIES AND VARIETIES OF BRITISH FERNS, &c. 
I. FERNS, or FILICES. 
POLYPODIACEiE § POLYPODIES. 
Genus 1. POLYPODIUM, Linnaeus. 
1. P. vulgare, Linnaeus. —Fronds oblong, pinnatifid. Plate 
I. fig. 2. 
tar. cristatum.—Fronds pinnatifid, segments and fronds 
tasselled at the apices. 
tar. semilacernm.—Froilds pinnatifid, lower segments 
again pinnatifid, upper fertile. 
tar. cambricum. — Fronds pinnatifid, segments again 
pinnatifid, all barren. 
2. P. Phegopteris, Linnaeus. —Fronds pinnate below ; pin- 
nee pinnatifid. Plate II. fig. 2. 
3. P. Dryopteris, Linnaeus —Fronds temate, deltoid, gla¬ 
brous. Plate II. fig. 1. 
4. P. Robertianum, Hoffmann. —Fronds subternate, elon¬ 
gate-deltoid, glandular-mealy. Plate III. fig. 1. 
