* ^^^ FILICES. lAspIenitim. 



detect in the Essex Mountains, State of New York. Dr Bongard's A, vestitunij which there is every reason 

 to believe is the true vestitiim of Sw., has the most perfect conformity with this and with Mr Drummond's 

 specimens. 



7. ONOCLEA. £. 



1. 0. sensibilis, L.—Mx. Am. 2. p. 212. Ph Schkli. FiL L 102 ,8. O. obtusilobata, 



Schkh. FiL L 103 Ph. 



Has. Lake Huron, Dr Todd, to the Saskatchawan. Dnimmond. 



8. STRUTHIOPTERIS. Willd. 



1. S. Germanica, Willd — Beck, Fl. p. 456 — Onoclea Struthiopterls, ScAAA. Fil 1. 105, 

 and O. nodulosa, ejiisd, 1 1 04. — Osmunda Struthiopteris, L. — Struthiopteris Pennsylvanica, 

 Willd.— Ph. Am. p. QQQ. 



Hab. Canada to the Saskatchawan. Dr Richardson. JDrum?nond. Douglas, — After a very careful com- 

 parison of the N. American Struthiopteris with the European, I am compelled to consider them, as Dr Beck 

 has already done, one and the same species. 



9. ATHYRIUM. Presl] 



1. J . Filix fcemina^ Roth — Asplenium, -^em^.— Nephrodium, il[/r.— Aspidium,Sw. 

 E. Bot, t. 1459. Schkuhr^ FiL t. 58.— Asplenium Athyrium, Schkuhr, FiL t. 78.— Aspi- 

 dium asplenioides, 5w.— PA.— Nephrodium, Mx,—^. fronde angustiore. Aspidium angus- 

 tum, Willd.— Ph.— Athyrium angustum, Presl^ Beliq. Haenk. 1. p. 39. — y. fronde angusta 

 oblongo-lanceolata rigidiore, pinnis pinnulisc[ue remotioribus. 



Hab, «, and ^, Throughout Canada, Goldie, Mrs Perceval, Lady Dalhousie ; to the Saskatchawan and 



to the alpine woods of the Rocky Mountains. Dr Richardson. Drummond.—^, Nutka. Mertens.—y. 



Common on the N. W. Coast, by the shady banks of streams,— This species in America, as in Europe, varies 



in the breadth of its fronds : the Columbian var. is the most striking of these forms, but it is evidently not a 



distinct species. 



10. ASPLENIUM. Z. 



1. A, (Camptosorus) rhizophyllum^ L.—Mx.—Ph. Am. 2. p. 666. 



Hab. Canada. Ptirsh, Goldie, to the Saskatchawan. Drummond.—The reticulated venation of this plant, 

 forming oblong hexagonal areolae, is very remarkable, and quite ditFerent from that of any other Asplenium, 

 but very similar to some of the exotic Scolopendria, with which the plant agrees in its undivided fronds! 

 Presl has constituted of it the genus Camptosorus, 



2. A. Trichomanes, L — E. Bot. t. 576. Mr.— A. melanocaulon, Willd.— Ph. 



Hab. Canada, Pursh, Mrs Sheppard, Mrs Perceval; to the Saskatchawan, J>r Richardson. Drummond. 

 Damp rocks of the Columbia and Puget's Sound. Douglas. 



3. A. virides fronde pinnata pinnis rotundato-ovatis obtuse serratis basi cuneatis, rachi 

 concolore. JIuds. — E. Bot. t 392. 



Hab. Moist shady rocks on the Rocky Mountains. Drimmond.—Thh is quite new to America. 



