AND GENERA OF PLANTS. 323 
Has. Banks of Lewis’ River, and other streams of the Oregon. Allied to, but very distinct 
from the preceding, with the same elongated, hirsute stigmas. A low, branching, somewhat spiny 
shrub, about half a foot high. Leaves about an inch long, two to three lines wide. Scales of the 
involucrum lanceolate-linear, part of the outer series resembling the leaves as in the preceding spe- 
cies; florets about twenty-five ; achenia very glabrous, slightly striated, linear-oblong. 
BIGELOWIA. (Decand.) 
Oxss.—Involucrum three to four-flowered; branches of the stigma short, 
scarcely exserted, ligulate, the apex sublanceolate, puberulous.—Low herbs 
with large radical leaves and scapoid, almost naked stems; branches corymbose. 
Bigelonia nudata and B. virgata. 
Has. On the borders of sandy, shallow ponds, from Virginia to Florida. The B. nudata as 
far north as New Jersey. 
*CHRYSOTHAMNUS. 
BicELow1a, but with the receptaculum naked. Capitulum five to eight-flow- 
ered; branches of the stigma filiform, cylindric, exserted, acute, pubescent 
nearly their whole length.—Very branching shrubs of the western interior 
and Rocky Mountain plains, with entire, equal, linear leaves, and fastigiately 
clustered flowers. Most of the species more or less resinous, and with a 
heavy aromatic odour.—(Named from their affinity to Chrysocoma, and bril- 
liant golden yellow flowers.) 
Chrysothamnus * pumilus; shrubby, dwarf, smooth or pulverulently pubes- 
cent; leaves narrow linear, acute, partly three-nerved; involucrum about five- 
flowered. 
Has. On the borders of Lewis’ River and the Rocky Mountain plains. A low shrub, much 
branched from below, about six inches high; flowers in terminal, fastigiate clusters. Involucrum 
smooth or glutinous. 8. *£uthamioides; involucrum ovate, the scales ovate and short. Perhaps 
a distinct species. 
Chrysothamnus * speciosus; shrubby and virgately branched; leaves narrow, 
linear, acute, more or less tomentose; capituli in dense, conglomerate, terminal 
clusters, five-flowered; style hirsute, elongated; pappus copious, scarcely sca- 
brous. 
