1864.] LAWSON ON CANADIAN PERNS. 295 



curved, linear-awl-sliaped, tipped with a white hair point ; sporangia 

 in scaly catkins, which are usually in pairs on common peduncles. 

 Lycopodium davatum, Linn., E. B., Michaux, Pursh, Bigelow, 

 Beck. Darlington, Spring, Hook., Torrey, Gray. L, frisfachi/um, 

 Pursh ? L. integri folium, Hook. L. aristatum, Humboldt. — 

 Occasionally found in the woods in rear of Kingston, but not com- 

 mon ; Newfoundland, Hook. Fl. Bor. Amer. ; between Thessalon 

 and Missisagui Rivers. Lake Huron, R. Bell,jun.; Prescott, com- 

 mon, B. Billings, jun.; Three Rivers, Temiscouata, and Wolfe 

 Island, P. W. Maclagan, M.D. ; Seymour, in pine woods, rare, 

 J. Macoun; Ramsay, Rev. J. K. McMorine, M.A. ; River Ris- 

 tigouche, St. Lawrence Gulf, R. Bell, jun. ; London, W. Saunders, 

 L'Orignal and L'Anse au Cousin, Gaspe, J. Bell ; Belmont. 

 The spores, chiefly of this species, constitute the pulvis Ii/cojjodii, 

 which is used by apothecaries, and was at one time employed for 

 making artificial lightning in the theatres. 



L. annotinum, Michaux. — Stems very long, prostrate, creeping, 

 forked, with ascending branches ; leaves bright green, spreading 

 or slightly deflexed, in about five rows, linear-lanceolate, mucronate, 

 serrulate ; sporangia in scaly catkins, which are sessile, solitary, 

 oblong-cylindrical, thick. Lycopodium annotimim, Michaux, E. B., 

 Pursh, Beck, Tuckerman, Torrey, FL New York State, ii, p. 509. 

 — Pine forests in Hinchinbrook ; rocky woods in Pittsburgh, on 

 the north bank of the St. Lawrence, near Kingston ; Gananoque 

 Lakes ; L'Anse au Cousin, Gaspe, John Bell, B.A. ; Prescott, 

 common, B. Billings, jun. ; Riviere du Loup, Nicolet, Montreal, 

 and Kingston, P. W. Maclagan, M.D. ; Belleville, in cool woods 

 common, J. Macoun; Ramsay, Rev. J. K. McMorine, M./V. • 

 Priceville, C. I. Cameron, B.A. ; Newfoundland, Hook, Fl. Bor. 

 Amer. ; St. Augustin and Cape Tourmente, Abb(3 Provancher. 

 Frequent in New York State, according to Professor Torrey. Of 

 this species there are two forms, only one of which, the normal 

 one, or type, I have as yet observed in Canada. The var. fS cdpes- 

 tre, Hartm. Scan. FL, having broader, shorter, paler, less spreading 

 leaves, I have from the Dovrefield (T. Anderson, M.D.), Lochna- 

 gar, Scotland (A. Croall), and entrance to Glen Fee, Clova, where 

 I found it growing with the typical form. 



L. dendwideum, Michx. — Stems upright, bare below^ bushy 

 above (giving the plant a tree-like aspect), arising from a long 

 creeping rhizome, leaves more or less appressed ; sporangia, in scaly 

 catkins, which are sessile, cylindrical. Lycoj)odLiim dendroideurriy 



