90 
BRITISH FERNS. 
POLYPODIUM Average Height. 
feet. 
d ALPESTRE (The Alpine Polypody), syns., Aspidium a., Phegopteris a., Pseudathyrium a. 
FLEXILE 1 
d DRYOPTERis (The Oak Fern) 
d PHEGOPTERIS (The Beech Fern) 
d Eobebtianum 
calcareum 
(The Limestone Polypody), syn., Phegopteris E., 
s. d. 
1 6 
2 6 
0 6 
0 6 
0 6 
POLYPODIUM DRYOPTERIS. 
VULGARE (The Common Polypody) 1 
BIFIDO-CRISTATUM (Mapplebeck) ... 1 
BiFiDUM (Frances) 1 
Cambricum (The Welsh Polypody) (Linnaeus) 1ft. 
Prestonii (B.) ... 1 
CORNHBIENSE (M.) | ^ 
elegantissimum(S.) j 
ELEGAHTISSIMO-MULTIFIDUM ... 1 
— CORNHBIENSE FOWLERII (L ) 
TBICHOMANOIDES (Backhouse) 
CRISTATUM (M.) 1 
GRANDICEPS (Foster) 1 
GRANDICEPS MrS. FoX (B.) 1 
MULTIFIDO-CRISTATUM (M.) 
GRANDICEPS PARKER (W.) 
OMNILACERUM (M.) 1 
PLUMOSUM .. 1 
PULCHERRIMUM (S.) 1 
SEMILAOERUM (The Irish Polypody) (Link) l^ft. 
POLYSTIOHUM, syn., Aspidium 
AOULEATUM (The Prickly Shield Fern), see illustration 2ft. 
Abbott.® (L.) ) ^ 
ANGULARE GRANDICEPS Abbott (.J.) f 
ACULEATUM CIRCUMGLOBATUM (L.) ... ... 1^ 
CRUCIATUM (L.) 2 
HONOR ABILE (L.) 
... 0 6 
... 3 a 
... 1 6 
... 2 6 
... 2 6 
... 3 6 
... 2 6 
... 2 6 
... 3 6 
... 3 6 
... 2 6 
... 3 6 
... 2 6 
... 1 0 
... 3 6 
... 3 6 
..; 3 6 
