140 BOTANY. 
diameters. Except where otherwise specified, the figures are enlarged 
about 10 diameters. 
BRICKELLIA BETONICHFOLIA, Gray (Pl. Wright. 2, 72) -—Erect, covered 
with spreading, jointed hairs ; leaves sessile, ovate, 3-nerved, crenate, hairy 
and somewhat glandular above and below, becoming smaller toward the 
top and gradually reduced to mere bracts; 2-4 heads of flowers on pedun- 
cles from the axils of the upper and opposite leaves; involucre in two or 
three series, all acute and ribbed, but the inner twice longer than the outer; 
pappus rough and achenium silky villose—Arizona, Prof. Oscar Loew. 
Bricketuia Wricutn, Gray (Pl. Wright. 2, 72).—Sub-shrubby, 4° 
high, much branched, glabrous or puberulent below, sub-scabrous and 
glandular above; leaves petioled, cordate, irregularly crenately toothed; 
veins prominent below; inflorescence thyrsoid-paniculate, each branch 
from the axil of a small leaf or branch; pedicels distinctly glandular hairy; 
heads about 15-flowered; corollas slender and styles much exserted; achenia 
hirto-puberulent; pappus roughish; scales of the involucre in about three 
series, purple-tipped, plainly nerved, obtuse—Black River, south of Camp 
Apache, Ariz., at 5,000 feet elevation (793). 
Brickeuia Carirornica, Gray.—Nevada and Utah. 
BRICKELLIA GRANDIFLORA, Nutt—Colorado (422, 423). 
Liarris scariosa, Willd —Dwarfed specimens from Trout Creek, Colo- 
rado (458). : 
XANTHOCEPHALUM* GYMNOSPERMOIDES, Benth. & Hook. (Gutierrezia? 
gymnospermoides, Gray, Pl. Wright. 2, 79.\—Smooth, erect, herbaceous, 2-3° 
high; leaves lanceolate, entire or nearly so, tapering into a petiole, slightly 
glistening with a gummy exudation, 2-3’ long, and about’ 6” wide; heads - 
in a compound corymb; rays many, rather small, without pappus; disk- 
flowers with a minute crown-like pappus of chaff, which in the central 
* XANTHOCEPHALUM, Willd.—Heads heterogamous; flowers of the ray pistillate, numerous, about 
l1-seriate; disk-flowers perfect, fertile. Invol hemispherical or broadly r late; bracts in many 
series, imbricated, coriaceous, with appressed or spreading tips, the outer ones smaller, Receptacle 
plane, foveolate. Pistillate corolla ligulate, sub-entire, spreading, elongated or small; perfect flowers 
regular, tubular; limb somewhat enlarged, 5-cleft at the apex. Anthers entire, obtuse at base. Style 
of the perfect flowers with flattened branches; appendages triangular or lanceolate. Achenia hardly 
compressed, smooth or striate. Pappus of minute chaff, coroniform or none.—Herbs or shrubs, with 
erect or ascending stems, often branching. Heads middle or large sized, solitary, on the end of the 
branches or loosely corymbose. Flowers all yellow. Achenia smooth.—BENTHAM & HOOKER. 
