Pkysematium.'] ' . FILICES. 259 



Hab. «. Canada. Lady Dalliousie. Mrs Perceval* — /3. Canada, Mrs Perceval ; and thence to the 

 Saskatchawan. Dr Richardson. Drummond, N. W, Am. Columbia River. Douglas. Portage, and near 

 the sources of the Columbia river. Drummond. — y. Canada. Goldie* — Of the two first varieties that I have 

 liere noticed, I have not the slightest doubt of their belonging to one and the same species ; and with regard 

 to the third (var. y.), among the larger specimens of /3. which I have seen, are some which appear to constitute 

 quite a connecting link between a. and y. This latter seems to be rare in British America ; more frequent 

 in the United States, where it is sometimes called P. connectile and sometimes P. hexagonopterum. The 

 larger the plant, and the more remote the pinna;, the greater the disposition in the fronds to become com- 

 pound, and the more the veinlets become branched or forked : — then too the decurrent triangular lobe of the 

 rachis is more developed and more remarkable. 



5, P, Dryopteris, L. — E.BoL t6l6,Rich.App.p. 39. — Nephrodium,i)lfa:. — P. calcareum, 

 Ph. — 0, rigidius, P. calcareum, Sm, E. Bot. t, 1525, Bong, Veg, Sitcha, p. 57. 



Hab. Canada. Mrs Perceval^ to the Rocky Mountains and to Bear Lake. Dr Ricliardsoiu Drum- 

 mond. — /S. High Mountains of the Rapids of the Columbia. Douglas, 



2. GYMNOGRAMMA. Desv. 



1. G. triangularis^ Kaulf, — Hook, et Grev, Ic, Fit, t, 315. Hook, et Ai'n, Bot, of Beech, 

 Voy.p, 161 eM05. 



Hab. Columbia. Douglas. — A single specimen only of this is in the Herbarium of Mr Douglas, mixed up 

 with other Ferns of the Columbia. It was probably found to the south of that river towards California, a 

 country which the species is known to inhabit. 



3. WOODSIA. Br. 



r 



1. TV, Ilvensis, Br, in Linn, Trans, v, U, p. 173.— J5. Bot, t, 2616. Sw.—Pk, Am. 2, 

 p, 600. Bich, App. p, 39. — Polypodium, Sw, — Neplirodium rufidulum, Ph, {certe.) 



Hab. Canada to Hudson's Bay, Bear Lake and the Rocky Mountains. Pursh. Goldie. Lady DaU 

 housie. Dr Richardson, Douglas, Drummond, 



2. W, hyperhorea^ Br, L c, p, 173, cum Ic, — Ph, ^m.9./».600. — Polypodium, StcPresl^ 

 E, Bot. t, 2023. 



Hab. Canada to the Saskatchawan. Pursh. Dr Richardson, Drummond. 



3. W, glabella {Br.); frondibus (lanceolato-lineailbus) pinnatis glaberrimis, pinnis 

 triangularibus pinnatifidis imis dilatatis laciniis cuneiformibus, rachi nuda stipite squa- 

 mato. (Tab. CCXXXVII.) Br. in Rich, App. p. 39. 



Hab. Great Bear Lake. Dr Richardson. — A very distinct species, always retaining the character above 

 given by Mr Brown. 



Tab. CCXXXVII. Fig. I. Pinna ;/ 2. Sorus ;/ 3, 4. Capsules ;/ 5. Seeds -.—magnijied, 



4. PHYSEMATIUM. Kaulf. 



1. P. o6^(/SM?«.— Aspidium obtusum, Willd, — Schkuhr^ Fil. t. 21. and t. 43. b, p.^Ph. 



