Blake — A Revision of the Genus Viguiera 43 
dd. Phyllaries not with ovate indurated 
base and abruptly narrowed 
a apex; South Amer- 
Phyllaries Lr gag attenuate 
from near the base, "densely his- 
pidulous; Chile and adjacent 
Argentina .69. V. Gilliesiz. 
Phyllaries “broadest Doh the 
base, usu 
= po p. 132. 
p. Leaves oblong or lance-oblong, ee 
ee. Phyllaries strongly indurated to above the 
middle, 
ff. Phyllaries with er Moe squarrose her- 
bace ; Mexico. .128. V. a0 0 
Ameri 2, of 
gg. Leaves sine bene 
Leaves sienaly aelike tuberculate- 
hispid and strigillose; peduncles 1.3- 
3.2 dm. long. .123. V. oblongifolia. 
Leaves not ase ay merely strigillose; 
peduncles 3.5-14.5 em. long. 
Us A onsale 
gg. Leaves pale or canescent teats 
aves subentire ..115. v. paren 
Leaves strongly crenate-serra “— 
V. robusta. 
ee. Phyllaries indurated only at base 
hh. Squamellae united on each side of np 
into a many-nerved membranous se 
about e ee Nene awns. 
g. Yerbalesia, p. 180. 
hh. ep geereros free or somewhat sated but 
t membranous, 7% 
tt. Involuere | 4- 5-seriate, 6-8 mm. high; 
ge Sey song Pf dior 72 
ti. levies 2-3-seria riate, 
mostly much ree dca in y piochang 
ei. Involucre 12-20 m m. high, kk. 
kk. Leaves pale or sibianaeilats beneath. 
in rolucre 4-seriate, ore mm. 
mm. 
hat ages . V. aurea. 
kk. Leaves green beneath. 
Involucre 15-20 mm. high. 
v. ob gat 
Involucre 12 mm. high 0 or less. 
V. Pflanzii. 
eaves much reduced. 
e 3—4-seriate. 
81. V. Bakeriana. 
Involucre 2-seriate. 
82. V. subdentata. 
jj. Involucre 6-11 mm high, U 
Ul. Lower | 
iw ior 

