122 



Journ. vi. p. 333. Metten. Aspid. p. 92. Asa Gray, Man. Bot. 

 Ilhistr. p. 598. Lastrea, Pr., and others. Aspid. Filix-mas, 

 Ph. Fl.Am. W.p. 662. 



Ilah. Canada, Goldie, Piirsh, Ilorh. apud nos. United States, rich and moist 

 woods, from Connecticut to Kentucky and nortliwards, Asa Gray. — Pursli mis- 

 took this for N. Filix-mas, from which, as from every other species, it is very 

 distinct. 



105. N. (Lastrea) ^narginale, Mich. ; caudex short thick 

 stout densely clothed with large glossy ferruginous or almost 

 golden scales, stipites tufted similarly paleaceous a span to a 

 foot high, fronds subcoriaceous 1-1^ foot long broad-oblong 

 acuminate bipinnate, pinnoe rather distant sessile or nearly so 

 oblong acuminate 4-4| inches long by 1 inch broad, pinnules 

 also rather distant sessile i-| inch long oblong very obtuse 

 subfalcate sessile lobato-pinnatifid especially at the base 

 which is sometimes obtusely auricled on both sides more so 

 on the lower, veinlets once or twice fcirked, sori terminal on 

 the upper branch quite marginal, involucres cordato-reniform 

 membranaceous convex with a deep sinus. — Mich. Fl. Bor. 

 Am. ii. p. 267. Aspidium, Sio. Syn. Fil.p. 50. Willd. Sp. PL 

 V. p. 239. Schk. Fil.p. 195. t. 45 b. Asa Gray, Man. of Bot. II- 

 liistr.p. 598. Metten. Aspid. p. 55. Lastrea, Pr., and others. 



Hab. Middle United States and Canada, common. — Well distinguished by its 

 uniform structure and marginal sori. 



106. N. (Lastrea) //'G^rcns, Rich.; caudex large stout 

 short densely rufopaleaceous with large soft glossy silky 

 spreading scales which extend to the tufted short stipites and 

 continue of a smaller size upwards to cover more or less the 

 whole back of the frond, fronds 3-10 inches high 14 inch wide 

 exactly lanceolate acuminated attenuated below, coriaceous 

 bipinnate, pinnae approximate except the lower ones, from a 

 broad base oblong-lanceolate obtuse, pinnules very small 

 scarcely a line long approximate oblong crenato-dentate, in- 

 volucres about four on each pinnule mixed with chaffy scales 

 orbiculari-cordate membranaceous scarcely convex. — Ri- 

 chards, inApp. to Frankl..Joiirn. p. 783. Hook, and Grev.Ic. 

 Fit. t. 70. Aspid., Siv. Syn. Fit. p. 51. adn. 67- Willd. Sp. 

 PL v. p. 253. Asa Gray, Man. of Bot. Ilhistr. p. 598. Poly- 

 stichum, Ledeb. Fl. Ross. iv. p.5\4t. Lastrea, Pr., and others. 

 — /8, slender submembranaceous very sparsely scaly. 



Hab. High arctic or subarctic regions, Europe, Asia, and America. The Cau- 

 casian Alps {Dr. Fischer) are the most southern latitude in Europe ; as, in North 

 America, Penohee Iron range, Wisconsin, lat. 46° 15' N. {J. A. Lapham): and 



