CANADIAN FILICINE.E. 181 



but rare in northern counties of New Brunswick. — Foider. G-rand Falls and Woodstock, 

 N.B. — P.Jack. Common in Quebec. — Provancher, U Urban, Mc Cord, J. Bell, etc.; and in 

 Ontario. — Macoun, Lawson, Billings, Logie, Burgess, etc. Plentiful in rocky parts of Mani- 

 toba. — Macoun, Daivson, Burgess. Nelson Eiver, Hudson Bay, N. W. T. — R. Bell. Rocky 

 Mountains. — Macoun. In British Columbia the common form is Yax. occidentale. — Macoun 

 and Fletcher ; but specimens of the normal type are also found. This plant has been seen 

 growing plentifully on old elm trees, near Belleville, Out., near Heely Falls, Trent River, 

 Northumberland Co., Ont., and near Amherstburg, Essex Co., Ont. — Macoun. 



2. — P. FALCATUM, Kellogg, (Kellogg's Polypody, Hooked Polypody, Liquorice-Fern), 

 Eaton, Ferns of N. A., I, 201. Underwood, Our Nat. Ferns, etc., 81. 



P. gli/cyrrhiza, Eaton. 



It is a species with thin but evergreen fronds, by Hooker regarded as only a form, of 

 P. vulgare, growing in the crevices of sea cliffs and in trees, and reaching a height of 1\ 

 to 2 feet. Rootstock creeping, elongated, and chaffy especially at the advancing end ; 

 stalks commonly a little less than half the length of the fronds, slender, pale straw-colour 

 when dry, and slightly chaffy just at their articulation with the rootstock ; fronds broadly 

 lanceolate, 9 to 15 inches long by 4 to 8 wide, long-pointed, smooth, and very deeply piu- 

 natifid ; segments numerou.s, tapering from broad bases into long, acuminate points, 

 sharply serrate, and often falcate ; sori medium-sized and nearer the midvein than the 

 margin. 



No marked variations are known in this fern, but the edges of the pinnœ are some- 

 times entire, and again deeply incised. The root has a taste resembling liquorice, and is 

 used as an emollient and expectorant. 



"With us this species is only found in British Columbia. Abundant on rocks along 

 the coast, between Victoria and Esquimault Harbour, Vancouver Island ; frecjuent in the 

 hollows of living trees in the valley of the Fraser River, especially at the mouth of 

 Harrison River. — Macoun. 



* # Veins forming ample regular areolae. 



3. — P. ScouLERi, Hook, and Grev., (Scouler's Polypody, Leather-leaf Polypody), Hook, 

 and Baker, Syn. Fil., 342. Eaton, Ferns of N. A., I, 193. Underwood, Our Nat. Ferns, 

 etc., 81. 



P. carnosum, Kellogg. 



P. pachyphi/Uum, Eaton. 



This is also an evergreen species, and ranges in height from 3 to 18 inches, growing 

 usually on trees and stumps, but occasionally on the ground. Rootstock stout, creeping, 

 scaly ; stalks stout, smooth, generally a little shorter than the fronds ; fronds smooth, 

 leathery, fleshy when green, broadly ovate in outline, 2 to 6 inches wide, and divided to 

 the rachis ; pinnre broad, linear-oblong, minutely serrate, and very obtuse, the terminal 

 one distinct ; veinlets mostly united to form regular areolse ; fruit-dots, often nearly the 

 fifth of an inch in diameter, placed close to the midrib. 



Except in size, P. Scotderi seems to present little variation, but some British Colum- 

 bian specimens examined had some of the jjinnrc acutish, and in one case the terminal 

 segment showed a tendency toward bifurcation. 



