NOTHOLyENA. 
13 
continuous line. Small ferns. Fronds pinnate to quadri-pinnate ; lower 
surface almost always hairy, woolly, chaffy, or powdery. Distinguished 
from Gymnogramme by the spore-cases being 07t the inargin only, not 
running up the veins to the midrib, in young fronds. Distinguished 
from Cheilanthes, on the other hand, by the spore-cases not being covered 
by an involucre. In three cases, N. caiidida, N. Hookeri, and N. Grayi 
the margin is recurved, but not so as to cover the spore-cases; and these 
three species are white or yellow-powde7y beneath ; our species of Cheil- 
anthes are 7teve7^ pow defy. 
Probably from the Greek, meaning spurious involucre, from the slightly recurved 
margin in some of t)ie species. 
A genus of about 40 species, 1 1 in the United States, all western. Growing in dry, 
rocky places. 
* Fro7id scaly he7ieath. 
9 . N. siniiata, Kaulfuss. wavy-77ia7gi7ied^.') 
Fronds pinnate, stiff and narrow ; pinnae almost entire, or lobed, 
ovate or roundish ; upper surface sprinkled with stellate hairs or divided 
scales. 6 to 24 inches high. (iV. Icevis, Mart. & Gal.; N. prumosa, Fee.) 
Texas to Arizona, south to Chili. 
* * Frond hairy above, densely woolly befieath. 
10 . N. ferrugiliea, Hooker. (The rusty N.) ^ 
Fronds pinnate, narrowly lanceolate; pinnae from ^ to ^ inch 
long, divided into 6 to 8 small lobes on each side. (iF. rufa, Presl.) 
Arizona to Texas, south to Ecuador. 
11. N. Parryi, Eaton. (Pa7'7y's N.) 
Fronds thrice-pinnate ; final divisions 1-12 inch long. 
Resembles Cheilanthes lanuginosa. Clefts of rocks, southern Utah to California. 
12 . N. Newberryi, Eaton. {Newberrf s N.) 
Frond thrice- to quadri-pinnate; final divisions 1-24 inch long. 
Very near to No. icf), but with a much finer and denser wool. 
Southern California to Guadalupe Island. 
* * Fronds white- or yellow-powdery beneath; {also scaly m No. iS.) 
4 — Fronds pimiate 07ily, green above ; the pin7tcE 7tot stalked; 77iargm of 
the fro7id slightly recurved as m Cheila7ithes, but 7iot so as to cover the spore- 
cases. Plants a foot high. Stalks s7nooth a7id shming. 
13 . N. Candida, Hooker. (The shmmg N.) 
Fronds triangular or ovate: lowest pinnae elongated, their lowest 
divisions again divided ; upper pinnae scarcely separate, passing into 
mere lobes at the top, green above, and white- or yellow-powdery beneath; 
midrib blackish. (iV. sulphurea. Smith; N. piilveracea, Kunze.) 
Texas to California, south to Chili. Known under many names. 
14 . N. Hookeri, Eaton. {Hooked s N.) 
Frond distinctly five-sided, ternate ; the middle division stalked, 
the other two sessile, and having on the lower side of each a long, lobed 
division, making the trend appear to be divided into five parts. Powder 
