Blake — A Revision of the Genus Viguiera 133 
Key To EUVAUREAE 
a. Leaves linear or linear-lanceolate, 9 mm. wide or less, b. 
b.- Heads discoid ee ei ee ee 109. V. discoidea. 
b. Heads radiate, c. 
as varie —_— tp chi a with short narrow 
eens MO Cpa a . V. atacamensis. 
d, ane ‘ep dote above; > asl and adjacent 
POMIONS 6 as a PA ee . V. anchusaefolia. 
d. — _ ‘lepidote above; northern Argentina and 
é. favclude +-6bis te; leaves neither densely nor 
hars fgets Lanerved..3 6053. . V. tucumanensis. 
é. ieveluees 3-Sserin ate; Princ densely and harshly 
eit ulate-strigillose and hispid, strongly 
VO sare cs Nd A ie oe SEN a sees 107. V. hispida. 
a. Leaves isenlave to ovate or oval, f. 
f. Leaves densely canescent-tomentose bene ath, 9g 
g. Involucre 1.6 cm. high, pon gcd at ; Hetiador... . -89. V. Sodiroi. 
eel cm. 
f. Leaves av Seuiie canescent-tomentose beneath, h. 
h. apebbes ry lanceolate, four times as ne as wide 
t. Phyllanies hot distinctly ciliate with spreading 
irs, 7. ay 
j. Leaves subcanescent hencath) 652 be eee 98. V. acutifolia. 
j. Leaves green benea 
k. Squamellae 1. 5-2 8 mm. long; Uruguay a and 
adjacent regions ........ secs S 108. V. anchusaefolia. 
k. Squamellae 0.3-0.6 mm. long; Bolivia, l 
l. Stems decumbent; heads 1-2............ 95. V. fusiformis. 
l. Stems erect; — several to many, cymose-_ - 
panic 
m. Stem rather r densely strigose-pilose. . . .97. Pate orng 
3 m. Ste ry smooth below the inflorescence .99. V.a 
v. Phyllis gaencter ciliate with more or less spread- 
n. Leaves rathur ‘pale and — densely hispidulous 
or pilose benea 
0. Phyllaries with a pee or oblong-obovate body 
sr rather abruptly narrowed herbaceous 
tip; Bolivia and Peru..........-...-- 91. V. lanceolata. 
0. Linens es gradually acute or acuminate; Brazil 
Y; D- 
p. Squamellae 1.2 mm. long .........-.---- 103. V. Malmei 
Squamellae minute, 0.5 . long, ¢ 
Leaves lepidote above in age; phyllaries 
_ tuberculate-hispid-striilose 
all o 
q- eee an lepidote bows phyllari = gla- 
us 0 ow except on : 
costa and margin ..........--- 104. V. villaricensis. 
n. Leaves green and ty ity pubsnonnt beneath, r. 
r. Involucre 4-seriate, 
