PHEGOPTERIS ALPESTRIS, Mettenius. 
Alpine Beech-Fern. 
Phegopteris ALPESTRIS : — Root-stock short and thick, 
erect or oblique ; stalks sub-terminal, four to ten inches long, 
bearing a few brown spreading scales near the base ; fronds one 
to two feet long, oblong-lanceolate, membranaceous, smooth, pin- 
nate with delicately bi-pinnatifid deltoid-lanceolate pinnae, the 
lower ones distant, and decreasing moderately ; pinnules ovate- 
oblong or oblong-lanceolate, doubly incised and toothed ; sori 
small, rounded, naked, usually copious on all or all but the 
lowest pinnae. 
Phegopteris alpestris, Mettenius, Fil. Hort. Lips., p. 83 ; Phegopteris, 
p. 10. 
Polypodium alpestre, Hoppe, “in Spreng. Syst. Veg., iv., par. ii., p. 320.” — 
Koch, Syn. FI. Germ., “ ed. 2, p. 974;” ed. 3, p. 731. — Moore, 
• Nat. Pr. Brit. Ferns, t. vli. — Hooker & Arnott, Brit. FI., ed. 7, 
p. 582. — Hooker, Brit. Ferns, t. vi. ; Sp. Fil., iv., p. 251. — 
Hooker & Baker, Syn. Fil., p. 31 1. 
Aspidium alpestre, Swartz, Syn. Fil., p. 421. — Schkuhr, Krypt. Gew., 
p. 58, t. 60. 
Asplenium alpestre, Mettenius, Asplenium, p. 198, t. vi., figs. 1-6. 
Pseudathyrium alpestre, Newman, “ Phytologist, iv., p. 370;” Hist. Brit. 
Ferns, ed. iii., p. 200. 
