Blake — A Revision of the Genus Viguiera 61 
hills, Sandia Station, 2385 m., 12 Oct. 1905, Pringle 13579 (G., 
U.58.); along road between Cerro Prieto and La Providencia, 11 
Sept. 1898, ZH. W. Nelson 4981 (U. S.). 
According to Hartman, the plant is known to the natives of 
Chihuahua as “ nakar6ri,” and used for poisoning fish. 
14. V. Roser Greenm. Stem stout, densely white-silky-lanate 
like the ascending branches. Leaves ovate-lanceolate, long- 
attenuate, falcate, rounded and subclasping at the base, 1-nerved, 
reticulate-veined (the veins closed near the margin), somewhat 
crisped on border, above pale green, tuberculate-hispid-pilose with 
incurved or subspreading hairs and gland-dotted, beneath canes- 
cently pilose-tomentose, gland-dotted, and venose; those of main 
stem 1.6-2.2 dm. long, 3-4.7 cm. wide, those of branches much 
smaller. Heads solitary at apex of stem and branches, 4.5 em. 
wide, on short peduncles pubescent like the stem, much over- 
topped by the leaves; disk 3.5 em. thick, 1.8 em. high. Involucre 
3-seriate, the phyllaries slightly graduated, with oblong to oval 
indurated-herbaceous base and strongly squarrose lanceolate 
acuminate herbaceous tip, densely tuberculate-strigose-pilose on 
their free surfaces, exceeding disk. Rays about 18, 10-12 mm. 
long, 4 mm. wide; disk-corollas appressed-puberulous on nerves 
and teeth, yellow, the teeth apparently turning purplish with age, 
7 mm. long (tube 1 mm.). Pales slender, mucronulate, pilosulous 
toward apex, 1—1.3 em. long. Achenes silky-pilose, 6 mm. long. 
Awns 2 mm. long; squamellae about 4~7 pairs, unequal, 1 mm. or 
less long, deeply lacerate, united only at extreme base. — Greenm.! 
Proc. Am. Acad. xxxix. 105 (1903). — MEXICO: ZacaTEcas: 
near Plateado, on the road from Colotlan, 31 Aug. 1897, Rose 
2710 (TYPE COLL.: G., K.): 
15. V. HypaRcyreaA Greenm. Stems erect, subcanescently 
pilose-strigose, at length subglabrate, simple or sparsely branched. 
Leaves longer than the internodes, lanceolate, acuminate, rounded 
at base, 3-nerved, above light green, roughly tuberculate-strigose 
and finely reticulate, beneath rather softly subsericeous-pilose with 
appressed hairs, 4~-7.4 cm. long, 1-2.4 cm. wide. Heads solitary on 
stem and branches, on very slightly thickened strigose peduncles 
3-3.5 em. long; disk (in fruit) 1.8 em. high, 2.5 cm. wide, convex. 
Involucre about 1 cm. high, 3-seriate, slightly graduated, the 
phyllaries firm, oblong, more or less pilose, slightly indurated at 
