156 Robinson and Greenman—Mexican Plants. 
leaves pinnate, about an inch long, ascending, puberulent; rhachis 
and pinne narrow, linear, acute and slightly pungent; leaflets 
usually 3 pairs and an odd one, 3 to 6 lines long; the lower pairs 
gradually more elongated: peduncles slender, erect, 4 to 6 inches 
long, 1-headed: head 8 or 9 lines in diameter, often bracteolate ; 
outer involucral bracts herbaceous, about 5, oblong, obtuse, 14 to 
2 lines long; the inner bracts scarious, yellow, ovate-oblong, 
obtusish, about 3 lines long: rays about 6, yellow, oblong, 
3-toothed, fertile, 5 lines long, half as broad; the middle tooth 
the smallest; achenes obovate, dark-colored, 2 lines long, two- 
thirds as broad, glabrous, rounded and emarginate at the apex: 
disk-flowers apparently all fertile, distinctly annulate.—Collected 
by C. G. Pringle, on the Sierra de San Felipe, altitude 7,000 feet, 
7 August, 1894 (No. 4871). Habit of LZ. Mexicana Gray. 
SCHKUHRIA PLATYPHYLLA. Erect, stoutish annual : stem terete, 
striate, pubescent, purplish, simple below: leaves all alternate, 
broadly ovate, obtuse, coarsely and somewhat doubly crenate- 
dentate but not at all dissected, abruptly contracted to a 3-nerved 
cuneate base, densely puberulent upon both surfaces, 2 to 24 
inches long, nearly or quite as broad, slightly paler beneath: 
petioles pubescent, 4 to 10 inches long: panicle much branched, 
densely glandular-pubescent: involucral bracts about 5, obovate, 
rounded at apex, herbaceous but with thin purple margins, glan- 
dular-pubescent externally, 23 lines long: ray flowers none, disk 
flowers about 20 in a head: scales of the pappus about 8; 
achenes upwardly pubescent especially near the base, 2 lines 
long.—Collected by C. G. Pringle, on Monte Alban, Oaxaca, 
altitude 5,500 feet, 8 October, 1894 (No. 4975). Exceptional on 
account of its broad undivided leaves. 
Liasum Kuatri. Shrub, 15 to 20 feet high, leaves falling 
before the flowers appear, deltoid-ovate, obliquely acuminate, 
cuspidate-serrulate, abruptly contracted to a somewhat cuneate 
base, glabrous above, gray and densely arachnoid-pubescent 
beneath, about 5 inches long and nearly as broad, 3-nerved from 
a point somewhat above the base: flowering branches terete, at 
first arachnoid but quite glabrate, opposite, recurving, terminat- 
ing in dense thyrsoid inflorescences: heads 8 lines long: involucral 
scales lance-linear, attenuate, imbricated in about two unequal 
series, densely dark glandular-pubescent: flowers bright yellow: . 
pappus nearly white: corolla 5 lines in length.—Collected by 
C. G. Pringle, on Monte Alban, near Oaxaca, altitude 6,000 feet, 
24 November, 1894 (No. 6059). For a critical comparison of 
this plant with certain neighboring forms we are indebted to Dr. 
fF’. W. Klatt, to whom we take pleasure in dedicating the species 
in recognition of his valuable contributions to the knowledge of 
American Composite. 
SENECIO GRACILIPES. Herbaceous, perennial, erect, slender, 
3 feet or more in height: stem simple up to the loosely paniculate 
inflorescence, striate, covered below with sparing arachnoid pubes- 
cence, above glabrate: leaves oblong in outline, deeply and regu- 
