THE BRITISH FERNS. 





THE MOUNTAIN BUCKLER FERN. 
LASTREA MONTANA. 
L. fronds lanceolate, much narrowed below, resinose-glandular 
beneath, pinnate; pinne linear-lanceolate, deeply pinnatifid ; lobes 
oblong, flat; sori marginal; caudex tufted; (indusium often obso- 
lete). [Plate XXX.] 
LASTREA MONTANA, Moore, Handb. Brit. Ferns, 2 ed. 100; 3 ed. 99. Newman, 
Hist. Brit. Ferns, 3 ed. 129. 
LASTREA OREOPTERIS, Bory, Dict. Class. @ Hist. Nat. ix. 932. Presl, Tent. 
Pterid. 76. Deakin, Florigr. Brit. iv. 98, fig. 1606. Babington, Man. 
Brit. Bot. 4 ed. 421. Sowerby, Ferns of Gt. Brit. 17, t. 8. Moore, Handb. 
Brit. Ferns, 2 ed. 100; Id., Ferns of Gt. Brit. Nature Printed, t. 28. 
Newman, Hist. Brit. Ferns, 2 ed. 188. 
ASPIDIUM OREOPTERIS, Swartz, Schrad. Jowrn. Bot. 1800, ii. 35; Id. Syn. Fil. 
50. Schkuhr, Krypt. Gew. 37, tt. 35, 36. Smith, Fl. Brit. 1120 ; Id., 
Eng. Fl. 2ed. iv. 273. Bentham, Handb. Brit. Fl. 629. Hooker & Arnott, 
Brit. Fl. 7 ed. 584. Mackay, Fl. Hib. 339. Willd. Sp. Plant. v. 247. 
Sprengel, Syst. Veg. iv. 101. Fries, Swm. Veg. 82. Mettenius, Fil. Hort. 
Bot. Lips. 92. Lowe, Nat. Hist. Ferns, vi. t. 17. 
ASPIDIUM ODORIFERUM, Gray, Nat. Arr. Brit. Pl. ii. 6. 
POLYPODIUM MONTANUM, Vogler, Dissert. Polypodio montano, cum Icon. (1787). 
PoLYPODIUM OREOPTERIS, Ehrhart, Beitr. zur Naturk. iv. 44. Smith, Eng. Bot. 
xv. t. 1019. Flora Damica, t. 1121. 
POLYPODIUM THELYPTERIS, Hudson, Fl. Ang. 457. Bolton, Fil. Brit. 40, t. 22, 
fig. 1-2. 
POLYPODIUM FRAGRANS, Hudson, Fl. Ang. ed. 2, 457 (not of Linneus). 
POLYPODIUM PTEROIDES, Villars, Hist. des Pl, Dauph. iii. 841. 
PoLYPODIUM LIMBOSPERMUM, Allioni, Auctuar. Fl. Pedem. 49. 
POLYSTICHUM MONTANUM, Roth, Fl. Germ. ii. 74. 
POLYSTICHUM OREOPTERIS, De Candolle, Flore Française, ii. 563. Koch, Synops. 
2ed. 978. Ledebour, Fl. Ross. iv. 513. 
NEPHRODIUM OREOPTERIS, Desvaux, Ann. Soc. Linn. de Paris, 257. 
PHEGOPTERIS OREOPTERIS, Fee, Gen. Fil. 248. 
HEMESTHEUM MONTANUM, Newman, Phytol. 1851, App. xxii. 






Var. cristata : fronds and pinne multifid-crisped at their apices. 

Caudex stout, tufted, decumbent and slowly creeping, formed of 
the bases of the fronds surrounding a woody axis, scaly. Scales 
pale ferruginous, ovate-acuminate. Fibres stout, brown, branching. 
Vernation circinate, the pinne not folded convolutely. 






