



THE BRITISH FERNS. 
THE ALPINE POLYPODY. 
POLYPODIUM ALPESTRE. 
P. fronds lanceolate, herbaceous, glabrous, sub-erect, bipinnate ; 
pinne narrow lanceolate from a broad base, spreading or ascending; 
pinnules ovate-oblong, or subfalcately ovate-lanceolate, pinnatifid ; 
segments oblong, bluntish, serrate; stipes short; secondary rachis 
narrowly winged; (sori rarely spuriously indusiate). [Plate IX.] 
POLYPODIUM ALPESTRE, Hoppe, Pl. Exs. Sprengel, Syst. Veg. iv. part 2, 320. 
Kaulfuss, Flora, 1829, 328. Koch, Synops. ed. 2, 974. Moore, Handb. 
Brit. Ferns, 8 ed. 59 ; Id., Ferns of Gt. Brit. and Ireland, Nature Printed, 
t. 7 A—O. Henfrey, Franc. Anal. Brit. Ferns, 5 ed. 28, supp. plate, fig. 
2A. Hooker & Arnott,- Brit. Fl- 7 ed. 582. Sowerby, Ferns of Gt. Brit. 
84, t. 49. Bentham, Handb. Brit. Fl. 626. Lowe, Nat. Hist. Ferns, i. 
t. 39. 
PoLYPODIUM RHATICUM, Pallas, “*Itin, ii. 28.” Ledebour, Fl. Ross. iv. 510. 
Fries, Sum. Veg. 82. Woods, Tour. Fl. 423. Nyman, Syll. Fl. Europ. 430 ; 
not of Zinneus. 
ASPIDIUM ALPESTRE, Hoppe, Taschénb. 1805, 216. Swartz, Syn. Fil. 421. 
Schkuhr, Krypt. Gew. 58, t. 60 (excl. syn. Lin.). 
ASPIDIUM RILETICUM, Swartz, Schrad. Jowrn. Bot. 1800, ii. 41; Id., Syn. Fil. 
59 (excl. syn. Lin.) Tenore, Att. Accad. del R. Inst. Sc. Nat. Napol. v. 
(reprint 29, t. 4, fig. 8). / 
ASPIDIUM DISTENTIFOLIUM, Tausch ; according to Steudel. 
ATHYRIUM ALPESTRE, Nylander ; according to Ledebour. 
PSEUDATHYRIUM ALPESTRE, Newman, Phytol. iv. 370, 974; Id., Appendix, 
1851, xiv. ; Id., Hist. Brit, Ferns, 3 ed. 199. Babington, Man. Brit. Bot. 
4 ed. 424, : 
PHEGOPTERIS ALPESTRIS, Mettenius, Fil. Hort. Bot. Lips. 83. J. Smith, Cat. 
Cult. Ferns, 16. 
Var. fiexile ; fronds slender, flaccid, narrow lanceolate, bipinnate; 
pinne short, ovate-lanceolate, spreading or deflexed ; pinnules oblong, 
obtuse or acutish, narrowed below, sessile or adnate, distantly lobed 
or toothed ; stipes very short. [Plate X.] 
POLYPODIUM ALPESTRE, var. FLEXILE, Moore, Ferns of Gt. Brit. and Ireland, 
Nature Printed, t. 7 D--E; Id., Handb. Brit Ferns, 3 ed. 59, 61. 
PoLyPoDIUM FLEXILE, Moore, Handb. Brit. Ferns, 2 ed. 225. Henfrey, Franc. 
Anal. Brit Ferns, 5 ed. 29, supp. plate, fig. 2 B. 
PSEUDATHYRIUM FLEXILE, Newman, Phytol. iv. 974; Id., Hist. Brit. Ferns, 
3 ed. 203. Babington, Man. Brit. Bot. 4 ed. 424, 
ATHYRIUM ? FLEXILE, Moore MS., in Hb. 

