ASFiniUM. 
25 
76. A. fragrans, Swartz. (The fragrant A.) 
Frond pinnate, narrowly lanceolate, glandular, fragrant, small ; 
pinnse parted, linear-oblong; final divisions oblong, obtuse, usually 
toothed, almost covered beneath with very large over-lapping indusia 
which are round and glandular on the edge. 4 to 12 inches high. 
Northern Rocky Mountains and eastward. 
77. A. Filix-mas, Swartz. (The Male-Fern.) 
Frond once- to twice-pinnate, smooth, broader; pinnae lanceolate, 
acuminate from a broad base ; final divisions oblong, obtuse, toothed at 
the tip, lower ones cut ; fruit-dots large, near the midrib ; indusium 
smooth, round -kidney-shaped. i to 3 feet high. {^Nephrodium , 
Richard.) 
In damp canyons. Rare. Colorado and northward, thence eastward. In various 
parts of the world. 
78. A. rigidiilll, Swartz, variety argiitmil^ Eaton, (The stiff 
pungent variety.) 
Fronds bi-pinnate, ovate or triangular-lahceolate, smooth, glandular 
beneath; pinnae oblong-lanceolate, the lowest broadest; final divisions 
oblong, cut or doubly serrate, teeth tipped with small bristles ; veins very 
prominent; fruit-dots large, nearer the midrib than the margin; indu- 
sium round, glandular around the edge. Dried fronds fragrant, i to 3 
feet high. (^A. argutum, Kaulfuss.) 
Shaded canyons and hillsides. Oregon to Mexico, chiefly in the coast ranges. 
79. A. spinillosillll, Swartz, variety dilatatlim, Hornemann. (The 
bristly A., dilated variety.) 
Frond bi- to tri-pinnate, ovate; pinnules toothed or cut, lanceolate- 
oblong, set obliquely on their winged rachis ; lobes bristly toothed ; 
indusium small, smooth. Scales on the stalk brown, with a dark center. 
I to 3 feet high. {A. dilatatum, Swartz.) 
Damp woods; Oregon and eastward. 
A. Oreopteris, Sav., occurs in Unalaska, but does not reach our limits. 
* * Indusium round, fixed by the center. 
Fronds bristly toothed ; pinnoe enlarged al the base on the upper side. 
4H- Fronds pinnate, leathery; pmnce only toothed (cut only in No. 84); 
veins not uniting at the tip. 
80. A, LoiicMtis, Swartz. (The spear-like A.) 
Fronds scarcely stalked, linear-lanceolate, very stiff and leathery; 
pinnae lanceolate, curved, an inch long, teeth dense and long, bristle- 
tipped ; fruit-dots touching each other and near the margin. 9 to 20 
inches high. 
Usually at high altitudes, along streams and in clefts of wet rocks. Colorado, Utah, 
British Columbia and eastward. Europe and Asia. Not common. 
81. A, nillllitlllllj Kaulfuss. anned K.) 
Stalks often a foot long. Fronds lanceolate, almost leathery; pinnae 
linear-acuminate, 3 to 4 inches long, sharply and doubly serrate ; bristles 
pressed close to the frond and pointing forward. In the typical form the 
fruit-dots are abundant and midway between the midrib and margin, and 
the rachis shaggy with reddish-brown chaff and scales. 2 to 5 feet high. 
Nutka, through Oregon and California to Guadalupe Island. 
