158 BOTANY. 
Menampopium* cInEREUM, DC.—Woody at base, 4-12’ high, simple or 
much branched, covered with a short silky pubescence; leaves numerous, 
linear or slightly linear-spatulate; rays white (about 8), emarginate, oblong 
or lanceolate—A common plant in the drier parts of New Mexico and 
Arizona (96, 327). 
BERLANDIERAt LyRATA, Benth—Erect, branching at base; radical 
leaves lyrate on long petioles; terminal segment much the largest and (as 
well as the others) irregularly toothed; upper leaves lyrate but sessile ; 
rays 6-8, orange, with darker veins, emarginate, tomentose outside and 
especially on the veins. Whole plant is softly tomentose.—Covero, N. 
Mex. (98). 
Partuentum mvcanum, H. B. K.—Suffrutescent and much branched; 
younger branches and leaves canescently tomentose; leaves clustered, 
oblong, deeply cleft or pinnate, 5—-8-parted ; divisions obtuse, 9-15’ long 
and 2-6” wide, ashy color from the dense, short pubescence ; inflorescence 
corymbose-paniculate ; involucral scales in two series, outer oblong, inner 
broadly oval or nearly round and scarious with a ciliate-fringed margin ; 
rays short, ligules obcordate; achenia flattened obovate and with a pappus 
of two short, persistent awns; disk-flowers shorter than the obovate, hyaline, 
ciliate-fringed scales which enclose them.—Camp Bowie, Southeastern 
Arizona (453). 
HyYMENOCLEA MONOGYRA, T. & G.—Arizona (778). 
Amprosia PstLosTacHya, DC.—Utah, and (529, 697) Arizona. 
AMBROSIA APTERA, DC —Probably hardly sufficiently distinct from 
some forms of A. trifida, L, but having, however, wingless margins to the 
petioles—Southern Arizona (695, 696). 
popium, L.—Rays in a single series, fertile; flowers of the disk with an abortive style. 
Involucre double, the outer series of (4-5) broad fulineectia bracts, which are often connate at base 
the inner as many as the ray-flowers and enclosing their achenia. Receptacle strongly convex. Chaff 
thin, deciduous. Achenia (of the fertile flowers) ovoid, embraced by the hooded inner scales of the 
involucre. 
+ BERLANDIERA, DC.—Many-flowered, ligulate rays pistillate. Disk-flowers with an undivided 
eee ~_ of the involuere i in three series, the outer small, oblong or oval, the we set larger and 
t ,thomboidal, reticula ted, 1 wingless achenia 
of rhs y-flowers, Pappus of the ray of two minute ‘caducous teeth or short-awns. Inner face of the 
hamientony is mostly covered by the chaff of two sterile flowers. Pappus of the disk reduced to the 
merest crown or border. 
