156 Robinson and Greenman—NMexican Plants. 
leaves pinnate, about an inch long, ascending, puberulent ; rhachis 
pinne narrow, linear, acute and slightly pungent; leaflets 
usually 3 pairs and an odd one, 3 to 6 lines long; the lower pairs 
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, roun nded and e 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 ot Z. Mexicana Gray. 
CHKUHRIA PLATYPHYLLA. Erect, stoutish annual : stem terete, 
striate, es purplish, simple. below: leaves all alternate, 
b roadl ate, obtuse, coarsely and somewhat doubly crenate- 
dentate bat not at all dissected , abruptly contracted to a 3-nerve 
cuneate oe densely puberu ulent upon both surfaces, 2 to 23 
inches long, nearly or quite as broad, ateee paler beneath: 
petioies pubescent, 4 to 10 inches long: panicle much branched, 
ensely glandular-pubescent: involucral bracts about 5, obovate, 
rounded at apex, herbaceous but with thin purple mar gins, glan- 
ular-pubescent externally, 24 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, sp ane 4975). Exceptional on 
x 9 of its broad undivided lea 
Lrasum Kuatrnu. Shrub, 15 ‘ “20 feet high, leaves falling 
aliie- ‘an flowers appear, ‘deltoid- ovate, oblique uely acuminate, 
cuspidate-serrulate, abruptly aene: to a som mewhat pueront 
sce 
ved from 
series, densely re Gamer paccena flowers bright Sire 
pappus nearly white: corolla 5 lines in length. —Collected by 
C. &. Prin ngle - Monte Ribena: near Oaxaca, “altitude 6,000 nies 
24 November, 1894 (No. 6059). For a critical comparison ts) 
“9c lant with ic neighboring forms we are indebted to 
. Klatt, to whom we take pleasure in dedicating the ppecies 
“i recognition of his valuable contributions to the knowledge i) 
- American eearens te. 
SENECI O GRACILIPES. ee een erect, sl lender r, 
re 
