240 New Species of Mexican Plants. [ZOE 
em. wide, serrate with salient teeth, pinnately veined, the light- 
colored midnerve large and prominent, lighter-colored and hir- 
sute-pubescent below, pubescent and darker green above: petiole 
5-7 mm. long, slightly broadened at base: inflorescence corym- 
bose-paniculate terminating the stem and short branches from 
the upper leaves: involucral scales narrowly ovate-acuminate, 
appressed-hirsute: heads 12 mm. high, 6-7 mm. wide: corolla 5 
mm, long; tube pubescent; pales stramineous, acuminate, pubes- 
cent; akenes 5-6 mm. long, 1 mm. wide, slightly pubescent, more 
than the lower half attenuate into a stipe; pappus awns about 3 
mm. long, subequal. 
Collected on Ixtaccihuatl, Jan. 6, 1907. No. 1534. 
Encelia resinosa. Frutescent, stems striate, viscid: leaves ob- 
long-ovate, 5-7 cm. long, 1-1.5 cm. wide, acuminate, attenuate at 
base, sessile, entire, more or less viscid, pinnately veined, midnerve 
prominent and the numerous lateral veins obscure: heads 1.5 cm. 
wide without the rays, single terminating the leafy stems or with 
2-3 additiunal ones from the axils of the upper leaves: scales of 
the involucre-linear-lanceolate, in 2-3 rows, very glutinous, I cm. 
long, rays 2 cm. long, bright yellow: chaff scarious with acumin- 
ate glutinous apex: corollas 7 mm. long: akenes appressed silky- 
hairy, deeply notched between the two stout awns. 
Collected in mountains near Ixmiquilpan, Hidalgo, August, 
1905. No. 1456. 
Gochnatia Purpusi. A shrub with tomentose branches, the 
young growth densely white-tomentose: leaves ovate or ovate- 
lanceolate, entire, sessile, 2.5 cm. long, 4-12 mm. wide, white 
tomentose above becoming glabrate with age, densely white floc- 
ulent-tomentose below: inflorescence in glomerules 3 cm. in 
diameter terminating the branches: heads vearly sessile, 15 mm. 
long, about 15-flowered: scales of the involucre in about 6 rows, 
ficculent, pubescent, ovate-acuminate, extending down to base of 
the pedicel; flowers twice longer than the involucre, ochroleucous; 
lobes of the corolla revolute, half the length of the 5-mm--long 
tube; style branches about 1 mm. long, nearly truncate: akenes 
3-4 mm. long, sparingly silky-hirsute. 
