detect in the Essex Mountains, State of New York. Dr Bongard’s A. vestitum, which there is every reason
to believe is the true vestitum of Sw., has the most perfect conformity with this and with Mr Drummond’s
specimens.
7. ONOCLEA. L.
p O. sensibilis, L ,—Mx. Am. 2. p. 272. Ph.—Schkh. Fil. It, 102.— O. obtusilobata,
Schkh. Fil. t. 103.—Ph.
H a b . Lake Huron, Dr Todd, to the Saskatchawan. Drummond.
8. STRUTHIOPTERIS. Willd.
1. S. Germanica, Willd.—Beck, FI. p. 456.—Onoclea Struthiopteris, Schkh. Fil. 1.105,
and O. nodulosa, ejnsd. 1.104.—Osmunda Struthiopteris, L .—Struthiopteris Pennsylvania,
Willd.—Ph. Am. p . 666.
H a b . Canada to the Saskatchawan. Dr Richardson. Drummond. Douglas.—After a very careful comparison
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. A. Filix fcemina, Roth.—Asplenium, Bemh.—Nephrodium, Mx.—Aspidium, Sw.—
E . Bot. t. 1459. Schkuhr, Fil. t. 58.—Asplenium Athyrium, Schkuhr, Fil. t. *78.—Aspidium
asplenioides, Sw.—Ph.—Nephrodium, Mx.— fronde angustiore. Aspidium angus-
tum, Willd.—Ph.—Athyrium angustum, Presl, Reliq. Haenk. 1. p. 39.—y. fronde angusta
oblongo-lanceolata rigidiore, pinnis pinnulisque remotioribus.
H ab. a. and & Throughout Canada, Goldie, Mrs Perceval, Lady Dalhousie ; to the Saskatchawan and
to the alpine woods of the Rocky Mountains. Dr Richardson. Drummond.—A 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. L.
1. A. (Camptosorus) rhizophyllum, L .—Mx.—Ph. Am. 2. p. 666.
H ab. Canada. Pursh, Goldie, to the Saskatchawan. Drummond.—The reticulated venation of this plant,
forming oblong hexagonal areolae, is very remarkable, and quite different 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. Mx.—A. melanocaulon, Willd.—Ph.
H a b . Canada, Pursh, Mrs Sheppard, Mrs Perceval; to the Saskatchawan. Dr Richardson. Drummond.
Damp rocks of the Columbia and Puget’s Sound. Douglas.
3. A. viride; fronde pinnata pinnis rotundato-ovatis obtuse serratis basi cuneatis, rachi
concolore. Buds.—E. Bot. t. 392.
H ab . Moist shady rocks on the Rocky Mountains. Drummond.—*This is quite new to America.
4. A. ebeneum, Willd,—Ph> Am. 2. p. 666.-—A. polypodioides, Sw.—A. trichomanoides,
Mx.
H ab. Canada. Mrs Sheppard..
5. A.marinum; fronde pinnata, pinnis oblongis obtusis inciso-serratis basi superiore
rotundata et subauriculata inferiore truncata.— L.—E. Bot. t. 150.
H ab . New Brunswick. E. N . Kendal, Esq.—This species again is now, for the first time, ascertained to
be a native of N. America. It may perhaps be frequently found among maritime rocks. I have specimens
I can scarcely distinguish from it,, from the West Indies.]
11. BLECHNUM. L . '
1. B. boreale, Sw— E . Bot. t. 1159. Ph. Am. 2. p. 669. Bong. Veg. Sitcha, p. 58__
Lomaria spicant, Desv.—P resl—Lomaria crenata, Presl; Reliq. Haenk. 1. p. 51.
H ab . N. W . Coast. M. Lewis. [Ph.) Observatory Inlet. Dr Scouler. Niktka. Mertens.—l am aware
that an opinion prevails that this plant should b e referred to Lomaria (Stegania, butthe ind usium is
certainly not marginal. The fru ctificatio n m ay be considered that of Blechnum, the habit that oi Lomaria.
2. B . doodioides; fronde elongata lanceolata pinnata, pinnis suboppositis basi lata ex-
auriculata lato-lineari-oblongis sensim acuminatis paululum falcatis versus apicem obscure
serratis infimis parvis rotundatis superioribus multo angustioribus soriferis, soris continuis
vel saepissime interruptis.
H a b . Interior of N. W. America. Douglas.— Of this plant two specimens were sent to me by the late Dr
Gairdner, (then resident at Fort Vancouver on the Columbia,) which were gathered in the interior by Mr
Douglasbut whether in the Hudson’s Bay territories, or, as is possible, in N. California, I am uncertain. I am
disposed to believe in the former country, because there is nothing of the kind in Mr Douglas’ Californian Herbarium.
It is a very distinct plant, almost combining the character of Woodwardia, or Doodia, with those
of Blechnum. The veins are obliquely parallel with the costa, forked, and not anastomosing in the sterile
pinnae: when the fructification appears, the lower branch of'a vein anastomoses with the vein.immediately
above it, and in the interior of that vein (next the costa) the sorus is formed. In thé lower of the fertile
pinnae, the indusium frequently stands unconnected and more or less distant, as in Woodwardia, but generally
forming a continued line, from the union of the adjoining indusia. The stipes is dark purple, the upper
(fertile) pinnae are so narrow that the sori occupy nearly the whole surface, as in B. boreale.
12. PTERIS. L.
1. P . aquilina, L .—E . Bot. t. 1679. Ph. Am. 2. p. 688. Agardh, Recens. Sp. Gen.
Pter. p. 49.—P. caudata, Ph.—Q. lanuginosa; fronde subtus dense tomen tosa. Bong. Veget.
Sitcha, p. 58.—P. lanuginosa, Hook, et Am . in Bot. o f Beech. Voy.p. 405.__non Borv ?
et Agardk?
H ab . New Brunswick. Mr Kendal.' Newfoundland.' Miss Brenton. Canada. Pursh, Mrs Sheppard,
Mrs Perceval, to the Saskatchawan. Drummond.—(i. Very common from Cape Mendocino to Puget Sound*,
and in the open woods and undulating grounds in,.the interior of. C o lum bia. Douglas.