10 



Mich. Am. ii. /J. 267- Polystichum, Roth, Pr. A. Gray, Man. 

 of Bot. Wustr. p. 599. — Var. incisum ; all the pinnules lo- 

 bato-incised (rather a monstrosity than a variety). Asa Gray, 

 I. c. Aspid. Schweinitzii, Beck. 



Hab. N. America, from Canada to the Rocky Mountains, southward through 

 the United States, and along the AUeghanies, and from Florida westward to the 

 Mississippi. — A species well distinguished by its always contracted fertile pinnaj 

 when the sori are copious, less so when the fructification is partial. 



9. A. (Polystichum) mnnitum, Klfs. ; caudex short thick 

 erect densely paleaceous with large scaly ferruginous glossy 

 satiny lanceolato-subulate scales, stipites csespitose a span or 

 more long stramineous, below clothed with similar scales 

 to the caudex, smaller ones above and which are generally 

 continued through the rachis, fronds \\ inch and more long, 

 broad-lanceolate acuminate subcoriaceous pinnate, pinnae 

 numerous horizontal 2-G inches long from a broad nearly 

 sessile obliquely cuneate base truncate and auricled above 

 narrow-oblong much acuminated straight or falcate mucronate 

 serrated more or less coarsely, serratures setoso-spinulose, sori 

 in one or rarely two rows on each side the costa, involucres at 

 first convex nearly entire depressed in the centre and there 

 darker coloured. (Tab. CCXIX.)— A'aM.//". En. Fil. p. 2.30. 

 Hook, et Am. Bot. of Beech. Voy. p. 162. Hook. Fil. Bor. 

 Am. n.p. 261. Brack. Fil. U. S. Expl. Exped. p. 203. Po- 

 lystichum, Fr. Nephrodium Plumula, Fr. Reliq. Hank. P. 

 falcinellum, yS. Moore. 



Hab. California, Chamisso ; from Monterey in the south, JVm. Lohh, through 

 Oregon Territory, il/e>i-/e.<f, to Nutka in the north. Scolder, Dr. Gairdner, Beocheij, 

 Bridges, n. 303, Dr. J. M. Bigelow, llartweg, n. 2040, Geyer (Nez Percez Moun- 

 tains), Dr. Sinclair, Dr. Lyall, Douglas (who observes that the roots are roasted 

 by the Indians and form an article of food, and that they are used as garlands hy 

 them). Well distinguished from Aspid. falcinellum by the colour and texture of 

 the scales, by the less coriaceous, less opaque, and broader and more acuminated 

 pinnules, and by their setoso-spinulose serratures. 



10. A. {Vo\yst\c\iViTa) falcineUum, Sw. ; caudex short thick 

 densely paleaceous with very ovate or lanceolate falcate black- 

 brown glossy finely acuminated scales continued up the tufted 

 stipites which are a span and more long, fronds 1-2 inches 

 long broad-lanceolate or oblong acuminate coriaceous pin- 

 nated, pinnee horizontal subfalcato-ensiform petiolate 2-3 in- 

 ches long sharply (not spinulosely) serrated, the superior base 

 truncate and auricled, inferior base excised rarely auricled 

 above, sori biserial between the costa and margin, involucre 

 orbicular almost cup-shaped fringed at the margin with a dark 



