Aspidiutn.] FILICES. 26 1 



4. A, (Lastrea) cristatum, Sw.--E. BoL #.2125 {nott 1949.) Ph. 



+ 



Hab. Saskatchawan. Dr Richardson. Drummond. — The specimens are barren, but the form of the plant 

 is so remarkable, as to leave not the shadow of a doubt as to its bein^ the real A. cristatum, which, more- 

 over, is frequent in the United States. 



r 



5. A. (Lastrea) fragrans, Sw.—Hook. in Parnjs 2d Voy, App, p, 410.— Nephrodium, 

 Bich. App. p. 39. Hook, et Grev. Ic. FiL t. 70. 



Hab. Saskatchawan to the Arctic Sea-coast and Islands. Dr Richardson. Sir E. Parry, Drummond. — 

 Some of the specimens from about Bear Lake are nearly a foot in length. 



6. A. (Lastrea) spinulosum, Willd.—E. BoL t. 1460. Bong, Veget. Sitcha, p. 57. Ph. 



Am. 2. p. 663. — A. intermedium? Willd PL^0. A. dilatatum, Willd.—E. BoL L 1461- 



Bong. Veg. Sitcha^ p. 57. Ph. Am. 2. p. 663.— A. dumetorum, Sw.— Nephrodium 

 expansum, Presl^ Reliq. Haenk. \.p. 38, 



Hab. Newfoundland. Miss Brenton. Canada, {Mrs Perceval, Lady Dalkousie,) to the Rocky Moun- 

 tains. Dr Richardson. Drmnmond. Columbia River. Dr Scoukr. Douglas, — In America this plant, 

 although at all times easily recognised, is as variable as in England ; and it is equally impossible, as with us* 

 to limit the marks of the varieties. 



7. A. (Polj'stichum) Lonchitis^ Sw. — E.BoL L 797. 



Hab, Rocky Mountains. DrummoJid, 



8. A. (Polystichum) munitum (Kaulf.); frondibus pinnatis, pitinis lineari-lanceolalis 

 spinoso-acuminatis subfalcatis basi sursum auriculatis mucronato-serratis, serraturis sub- 

 appressis rarissime bidentatis, stipite rachique subtus et basin versus paleaceis. — Kaulf. 

 Enum, p. 230. Hook, et Am. BoL of Beech. Voy.p, 162, awrf405. — Nephrodium Piumula, 

 Presl, Reliq. Haenk. \. p. 33. 



Hab. N. W. America. Menzies. Douglas, Dr Gairdner, Nutka. Mertens, — The most common of all 

 Ferns on the N. W. Coast, between the parallels of 40^ and 49® n. lat., in the moist grounds of the dark 

 shady Pine Foresta. The roots are roasted on the embers, and constitute an article of food. The fronds are 

 used as garlands by the Indians. Douglas. 



9. A. (Polystichum) acrostichoideSy Siv, — Ph Schkh. FiL t 30. — Nephrodium, Mx. 



Hab. Canada. Mjs Perceval, Mrs Sheppard. 



10. A. (Polystichum) aculeaticm, Sw. — E. BoL L 1562. {ic. mat.) Hook. Br. FL ed. 

 4. p. 384. — A. vestitum, Sw — Schknh\ FiL L 43. Bong, Veg. Sitcha, p, 57. (et in Herb. 

 nostr,^ Nephrodium seiigerum, Presl, Reliq. Haenk. I. p, 37. 



Hab. Portage, and sources of the Columbia, west side of the Rocky Mountains. Drummond. Nutka. 

 Haenhe. Sitcha. Mertens,— Tins is a rare plant in N. America ; and the form is precisely that which I 

 have characterized as the Asp. aculeatum in '* British Flora,'* ed. 4. v. 1. p. 384, a state exactly intermediate 

 between A. lobatum on the one hand, and A. angulare, Sm., on the other. Pursh records it as an inhabitant 

 of the Green Mountains, Vermont; Mertens discovered it at Sitcha : and my correspondent, Dr W. V. 

 Macrae of Montreal, Canada, has lately communicated specimens to me which he had the good fortune to 



