CATALOGUE. 335. 
ceous, often chaffy beneath on the midrib, very sharply and often doubly 
serrate; the teeth with commonly appressed needle-like points, the base of 
the pinne auricled on the upper and obliquely truncate on the lower side; 
sori abundant, forming a row each side the midrib midway between it and 
the margin.—Enum. Fil. p. 236. Hooker, Sp. Fil. iv, p. 10, t. 219. 
California generally, extending through Oregon to Nutka in the north and Guadalupe Island 
(Palmer) in the south. The largest and finest specimens are from Crescent City (Brewer), and Port 
Orford, Oregon (Gen. Kautz). One of the handsomest of American Ferns, and, like many others, subject 
to considerable variations. The shaggy covering of the stalks and rachis consist usually of large 
cinnamon-brown chaff, intermixed with much smaller acuminate scales of the same color, but sometimes 
the color is much darker, and the scales mostly confined to the very base of the stalk. 
Var. nudatum. 
Frond smaller, the scales almost entirely lacking; pinne few and 
rather remote, short and broad, oblong-oval, the teeth closely appressed; 
sori scanty, on the ends of the few uppermost pinnee. 
Nevada Fall, Yosemite, Prof. Wood. Also from Moore’s Flat, on the Yuba River, collector 
unknown. The lower portion of the stalk is missing: this was probably somewhat scaly, but the part 
preserved, and the whole frond, are absolutely naked, and have a pale, almost glaucous appearance. 
Var. imbricans. 
Frond smallish, not narrowed at the base; pinnz crowded, lanceolate- 
oblong, pale, ascending and imbricated; fruit-dots nearer the margin than 
the midrib; stalk with shining brown lance-acuminate scales at the base, 
otherwise almost naked, as are the rachis and the frond. 
Red Mountain, Mendocino Co. (Kellogg). Mts. near Trinity River (Prof. Wood). Plumas Co., 
Mrs. Austin, Still another form, with ample fronds, broad and somewhat incised pinna, and scattered 
sori, was collected by Dr. Lyall near the 49th parallel. 
** Fronds bipinnate, or nearly so. : 
Aspidium aculeatum, Swartz. 
Rootstock stout, erect; stalks of variable length, commonly very 
chaffy, with large and small scales intermixed, as is the rachis; fronds 1-2 
feet long, forming a. crown, oblong-lanceolate, pinnate; pinnz closely 
placed, lanceolate from a broad base, mostly curved upwards, incisely 
pinnatifid or again pinnate; the lobes or segments of variable shape, oval- 
rhomboidal, or unequally triangular-ovate and auriculate on the upper side 
of the slightly stalked base, entire or serrate or incised, the lobes and teeth 
of all degrees aculeate or needle-tipped; under surface more or less chaffy- 
