Blake — A Revision of the Genus Viguiera 57 
10. V. hypochlora (Blake), comb. nov. Herbaceous, erect, 
somewhat branched above, the stem slender, hispidulous-strigil- 
lose. Leaves alternate (the lower not seen), lanceolate or narrowly 
oblong-lanceolate, acuminate, at base cuneate, obscurely serrulate, 
strongly 3-nerved above the base, reticulate beneath, above green, 
tuberculate-strigose, in age lepidote, beneath equally green, hispi- 
dulous along the veins, gland-dotted between them, 8-13.5 cm. 
long, 1.7—-2.7 cm. wide; unmargined portion of petiole 3 mm. long. 
Heads about 11, 3.5 cm. wide, loosely cymose-panicled, the pedun- 
cles 5-13 em. long; disk 1—(fruit)1.4 em. high, 1.4—(fruit)1.9 em. 
thick. Involucre 5-seriate, graduated, surpassing disk, the phyl- 
laries of the three outer series herbaceous, lanceolate or oblong- 
lanceolate, acuminate, more or less involute, blackish-green, hispid- 
pilose-ciliate, strigillose within, indurated at base, strongly reflexed 
at apex; the inner ones oblong, obtuse or obtusish, at apex sub- 
membranaceous, elongated, ciliolate, below slightly indurated and 
more or less strigillose. Rays 12, oblong, 15 mm. long, 4 mm. 
wide; disk-corollas yellow, puberulous at base, 5.5 mm. long (tube 
1.2 mm., ampliated below). Pales purplish and strigillose above, 
abruptly acuminate, 6.8 mm. long. Achenes glabrous, substriate, 
oblong, 3 mm. long, 1 mm. wide. Pappus none. — Gymnolomia 
hypochlora Blake! Proc. Am. Acad. li. 516 (1916). — MEXICO: 
JALISCO: mountains above Etzatlan, 2 Oct. 1903, Pringle 11537 
(TYPE coLL.: G., K.). 
bi. -¥. dmetuiieoiis (H. & A.) Blake. Apparently suffrutescent 
(?), branched or simple (?), the stem slender, densely and canes- 
cently subtuberculate-strigose or -strigillose, at length subglabrate 
and grayish. Leaves opposite (except usually the uppermost), nar- 
rowly oblong to linear-oblong or broadly linear, acute or rarely 
obtusish, cuneate to rounded at base, subentire or faintly and 
remotely denticulate, 3-nerved, above pale green, tuberculate- 
strigillose, beneath densely canescent-hispidulous, 3-9.5 em. long, 
4-13 mm. wide, on petioles 3-4 mm. long. Heads solitary at apex 
of stem and branches, 3-5 cm. wide, on few-bracted peduncles 1-13 
em. long; disk 1—(fruit)1.8 em. high, 1-(fruit)1.7 em. thick. Invo- 
lucre 11—(fruit)19 mm. high, 4-5-seriate, the phyllaries all densely 
and canescently tuberculate-strigillose and hispid-ciliate, the 
outermost oval or oblong to oval-ovate, acutish, callous-mucronate, 
the next two series longer and more oval-oblong, the inner two 
