THE ALPINE WOODSIA. 
THE ALPINE or DELTOID WOODSIA. 
WOODSIA ALPINA. 
W. fronds linear pinnate, slightly hairy, not scaly; pinne tri- 
angular, or triangular-ovate, obtuse, pinnatifid or lobed, the lobes 
roundish obovate, nearly or quite entire; .stipes and rachis very 
slightly hairy. [Plate CVI.] 
WoonsrA ALPINA, Gray, Nat. Avr. Brit. Pl. ii. 17 (1821) in part. Newman, 
Nat. Alm. (1844) 13 ; Id., Hist. Brit. Ferns, 3 ed. 79. Tausch, Flora, xxü. 
480. Deakin, Florigr. Brit. iv. 46, fig. 1584. Moore, Handb. Brit. Ferns, 
3 ed. 251; Id., Ferns of Gt. Brit. Nature Printed, t. 47 B. 
WooDstA ILVENSIS, B. and y., Babington, Man. Brit. Bot. 4 ed. 420. 
Woopsta HYPERBOREA, R. Brown, Trans. Lin. Soc. Lond. xi. 173, t. 11. Smith, 
Eng. Fl. 9 ed., iv. 310. Hooker de Arnott, Brit. Fl. 7 ed. 583. Moore, 
Handb. Brit. Ferns, 2 ed. 68. Sowerby, Ferns of Gt. Brit. 15,1 6 
Nyman, Syllog. Fl. Ewrop. 430. Sprengel, Syst. Veg. 125. Desvawx, 
Prod. 318. Link, Fil. Sp. 134. Hooker, Gen. Fil. t. 119. Fries, Sum. Veg. 
82. Ledebour, Fl. Rossica, iv. 511. Ruprecht, Dist. Crypt. Ross. 53. 
Fée, Gen. Fil. 338 ; Id., Iconograph. Now. t. 26, fig. 4. Lowe, Nat. Hist. 
Ferns, vil. t. 27. 
WOODSIA PUBESCENS, Opiz ; according to Steudel. 
WOODSIA INTERMEDIA, Ruprecht, Dist. Crypt. Ross. 54. 
ACROSTICHUM ALPINUM, Bolton, Fil. Brit. 76, t. 42. Poiret, Enc. Supp, 1.129. 
ACROSTICHUM HYBERBOREUM, Liljeblad, Stockh. Trans. (1793) 201, t. 8. 
PoLYPODIUM HYPERBOREUM, Swartz, Schrad. Journ. Bot. 1800, ii. 27 ; Id. Syn. 
Fil. 39. Smith, Eng. Bot. xxix. t. 2023. Schkuhr, Krypt. Gew. 189, t. 17 b. 
Willdenow, Sp. Plant. v. 197. Weber and Mohr, Deutschl. Krypt. 27, t. 2, 
fig. 1,2. Presi, Tent. Pterid. 180, t. 7, fig. 6. Fl. Dam. xii. t. 2185. 
Sturm, Fl. (Farrn.) t. 1. 
POLYPODIUM ARVONICUM, Smith, Fl. Brit. ii. 1115. 
POLYPODIUM FONTANUM, Linmeus, Hb. 
PoLYPODIUM ILVENSE, Withering, Arr. Brit. Pl. iii. 774. 
PoLYPODIUM HYPERBOREUM, et B. GRACILE, Wahlenberg, Fl. Lapp. 279. 
CETERACH ALPINUM, De Candolle, Syn. Pl. Gall. 115 ; Id., Fl. Franç. 8 ed. ii. 
567. 
Caudex short, subglobose, forming a small erect or decumbent 
crown, furnished with a few scales above. Scales lanceolate, pale 
brown. Fibres dark brown, wiry, smooth, branched. 
Vernation circinate. l 
Stipes pale reddish-brown, from three-fourths of an inch ts two 
inches long, articulated at about one-third of its length from the base, 

