V 



238 



I'ERN-FLORA OF CANADA. 



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GENUS XIV.— Atliyrlum, Roth. Lady Fcni. 



1. Am. Kii.lx-Fd'.MlNA, Roth. Common Lady Fern. — Rhizome 1,'irjfe and stout ; 

 fronds aniple (i to 3 feet lonj;-) in lai ^je tufts, and of a delirate hrij^ht i^reen hue; stipe 

 lonyf, (very erect in stron^i" plants) ; lainina broadly oblong-, lanceolate, bipinnate, pinna: 

 also lanceolate ; pinnules ovate-lanteolale oblonj;-, incisely toothed ; indusium, a very 

 delicate hmbriated membrane. Variable in size and in form of frond ; stunted forms 

 with flattened concave stipes, and laminre more or less drooping- or prostrate, form the 

 variety mollk. Fronds wither in .autumn. 



Common in shady situations wherever ferns grow. 



2. Ath. alpp:strk, N'ylander. Alpine L^ady Fern. — Rhizome short and stout, scaly 

 toward the apex ; stipes comparatively short, slightly scaly ; lamina broadly oblong- 

 lanceolate or narrowly lanceolate, erect, dark green, (rather firmer in texture than in 

 preceding species), bipinnate ; pinnae linear-lanceolate, tapering to a point ; pinnules 

 ovate-oblong or ovate-lanceolate (yomewhal falcate), deeply pinnatifid or almost pinnate. 

 Sori roundish, usually without indusia. Fronds wither in autumn. 



British Columbia : — Cascade and Selkirk Mountains. 



3. Ata. THKLYPTEROlDKS, Desvaux. Anirle-f railed L^uly Fern. — Rhizome stout ; 

 fronds i — 3 feet long, erect ; stipe long, slightly scaly ; lamina oblong-ovate or broadly 

 lanceolate, acuminate, pinnate ; pinnc'u lanceolate, acuminate, from a broad sessile base, 

 and deeply pinnatifid, the lobes oblong, minutely toothed, sori elongate-oblong, quite 

 straight, with entire indusia. 



Quebec: — At St. Joachim; Beloeil Mountain. Ontario: — Ramsay; Relleville ; 

 London ; I'rescott. Xova Scotia, not rare, in Halifax and Cumberland Counties. AVxy 

 Bru)is7vick : — Fredericton ; Bass River ; Salmon River. 



GENUS XV.— SCOlOpendrium, Smith. LLart's Tongue Fern. 



S. VI LGARK, Smith. Common LLart's Tongue Fern, — Rhizome short, tufted, scaly; 

 stipe one-third the length of frond, scaly, and^the midrib or costa slightly scaly beneath ; 

 lainina strap-shaped with a cordate base, usually undivided, margin entire, from 6 inches 

 to 2 feet in length ; sori linear oblique, in pairs, the two contiguous ones becoming 

 confluent, (that is uniting together so as to seem to form one). 



Ontario: — Owen Sound, Georgian Bay, Lake Huron. Neiv ^/-WM^Tt'/c^.-— Woodstock. 



GENUS XVL— OamptOaorUS, Link. Walking Leaf Fern. 



C. Rhizophvllls, Link. Travelling Fern. Walking L^eaf. — Fronds evergreen, a 

 few inches long, variable in size and shape, the fertile ones more elongated ; lamina 

 lanceolate, broad and hastate (somewhat arrow-shaped), wide and cordate at base, 

 attenuated towards the tip, which strikes root and gives rise to a new plant. 



Ontario: — Higfh F'alls, Portland Township, 1862; Oxford; Hamilton; Ancaster ; 

 Lake Medad ; Wolfe Lsland ; Owen Sound ; near Ottawa. Quebec: — Montreal Mountain. 



