2. P. (Allosorus) atro-purpurea, L .— Mx.— Schkuhr, Fil. t. 100. Ph.—P. gracilis,
var. nana ? Rich. App. p. 39.
H ab . Canada to Bear Lake and the Rocky Mountains. Dr Richardson. Drummond. Douglas.
3. P. (Allosorus) gracilis; tenuis, fronde lanceolata, sterili pinnata pinnis pinnatifidis
laciniis paucis late ovatis obtusissimis tenuissimis, fertili bipinnata pinnis lineari-oblongis
crenatis, rachi concolore, stipite atro-fusco nitidissimo.— Mx. Am. 2. p. 262. Ph. Am. 2.
p. 668.—Cheilanthes, Kaulf.—Spr.
H a b . Canada, Michaux, Goldie; to the Saskatchewan. Drummond. Dr Richardson.—This is a very
distinct species, though sometimes confounded with the preceding.
13. CRYPTOGRAMMA. Br.
1. C. acrostichoides {Br.); frondibus bipinnatifidis, sterilium pinnulis ovalibus crenatis,.
fertilium demum explan atis, soris linearibus discum totum occupantibus. Br. in Rich. App.
p. 39. et p. 54. Hook, et Grev. Ic. Fil. t. 29. Bong. Veg. Sitcha, p. 58.—Allosorus, Presl.
H a b . Nutka Sound. Menzies. Stony places in the Rocky Mountains, but rare : to the sources of the
Columbia, Drummond, and thence to the Grand Rapids of the Columbia, and the mountains of Macgillivray’s
River. Douglas. Cumberland House Fort to Bear Lake. D r Richardson.
2. C. crispa, Br.— Hook. Brit.Fl. ed. 4.J5.389.—Allosorus crispus, Bernh— Kaulf.Enum.
p. 143.
H a b . Unalaschka. Chamisso.—May this not be the previous species ?
14. ADIANTUM. L.
1. A. pedatum, L.— Mx. Am. 2. p. 263. Schk. Fil. t. 115. Ph.
H ab. Canada. Michaux. Pursh. Mrs Sheppard. Lake Huron. Dr Todd. Columbia River, N. W.
Coast. Dr Gairdner. Dr Scouler. Douglas.
15. CHEILANTHES. Sw.
1. C. vestita, Sw Ph. Am. 2. p. 670—Schkuhr, Fil. t. 134..—Nephrodium lanosura,
Mich. Am. 2. p. 270.
H a b . Alpine woods in the Rocky Mountains. Drummond. New Caledonia, N. W. Am. Douglas.
16. DICKSONIA. L'Herit.
1. D . pilosiuscula, Willd. Enum. p. 484. Ph. Am.p. 671.—D. pubescens, Schkuhr, Fil.
t. 131.__Aspidium punctilobum, Willd.—Ph.Am.2.p. 664.—Nephrodium punctilobum,
Mx.
H ab. Canada. Dr Holmes. New Brunswick. Mr Kendal.
TRIB. II . OSMUNDACE.®.
17. OSMUNDA. L.
1. O. spectabilis, WiUd.—Ph. Am. 2.p. 658.—O. regalis, (3. L.—O. regalis, Mx.
H ab. Canada. Pursh. Mrs Perceval, to the Saskatchawan. D r Richardson. Drummond.—The nearly
equal bases of the leaflets distinguish this species from our O. regalis ; and it is found in South as well as in
North America, retaining the same characters.
2. 0. cinnamomea, L .—Mx.— Ph. Am. 2.p. 657. Schkuhr, Fil.p. 146—O. Claytoniana?
Willd.—Ph.—/3. frondibus miajoribus, rachi magis alata. O.alata, Hook, in Ed. Phil. Journ.
v. 6. p. 332.
Hab. Canada. Goldie. Mrs Sheppard. Mrs Perceval. Newfoundland. Miss Brenton.—/3. Montreal.
Goldie.
3. O. interrupta, Mx. Am. 2. p. 273.—Ph.—Schkuhr, Fil. t. 144.
. Hab. Canada. Michaux. Mrs Perceval. Newfoundland. Miss Brenton. Dr Morrison.
18. SCHIZA3A. Sw.
1. S. pusilla, Ph.—Hook, et Grev. Ic. Fil. t. 47.—S. filifolia, De la Pyl. S. australis,
Gaud. FI. des Isles Malouines.
H ab.. Newfoundland. De la Pylaie.—For a long time this very rare and beautiful little plant has- been
believed to be peculiar to one locality, Pine Barrens, near Quaker’s Bridge, New Jersey, in the United States.
But in 1825 it was stated at Paris, that the same Fern (as ascertained by a comparison instituted by M.
Victor Jacquemont) had been discovered in Newfoundland, by M. de la Pylaie, and by M. Gaudichaud in
the Falkland Islands.
T r IB. I I I . OPHIOGLOSSEiE. Br.
19. BOTRYCHIUM. Sw.
1. B . Lunaria, Sw.—E. Bot. t. 318.
Hab. About Carlton House Fort on the Saskatchawan, Dr Richardson, to the Rocky Mountains; in the
wet prairies. Drummond.—.I believe this species had not been found before in the New World.
2. B . simplex, Hitch, in Sill. Journ. 6. p . 103. Hook, et Grev. Ic. Fil. t. 82.
Hab. Canada. Pursh. (in Herb, nostr.) Mr Cleghom. Between Cumberland House Fort and Hudson’s
Bay. Drummond.
3. B . ohliquum, Muhl.—Ph. Am. p. 655.
Hab. About Hudson’s Bay, (York Factory,) and on the “ Height of Land” in the Rocky Mountains.
Drummond. Newfoundland. D r Morrison.
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