Blake — A Revision of the Genus Viguiera 119 
l-nerved, sometimes subtending leafy branchlets, the middle ones 
longer, 4-10 cm. long, 1.2—1.5 mm. wide. Heads 2-3, about 2.5 em. 
broad, on naked or bracteolate peduncles 2-3.5 dm. long, these 
striate, rather densely strigose beneath the head; disk 7-11 mm. 
high, 1— (fruit)1.5 em. thick. Involucre 2-seriate, slightly gradu- 
ated, 5-6 mm. high, the phyllaries densely subtuberculate-strigil- 
lose, the outer narrowly lanceolate, the inner oblong-lanceolate, 
longer, all narrowed to an obtuse callous-mucronate apex, herba- 
ceous, the inner slightly indurated at base and ribbed. Rays 10, 
oblong, yellow, minutely puberulous on veins of back, 9 mm. long, 
3 mm. broad; disk-corollas yellow, strigillose below, 3-3.8 mm. 
long (tube 0.3-0.6 mm. long). Pales subacute, appressed-puberu- 
lous above, 5-5.8 mm. long. Achenes black, thickened, below very 
sparsely at apex densely strigillose, 3.8 mm. long, 1.2 mm. broad. 
Awns 2, broad, paleaceous, abruptly acuminate, fimbriate, 2.2- 
2.9 mm. long; squamellae connate nearly to apex, fimbriate, 
1.5 mm. long. — Ichthyothere dubia Glaziou! Bull. Soc. Bot. Fr. 
lvii. Mém. 3. 409 (1910), nomen, ex numero. — BRAZIL: Goyaz: 
“campo, between Rajadinha and Paranauna,” Glaziou 21561 
(tyre: K., fragm. G.). — T. 3. Fic. 9. 
Series B. Revolutae, ser. nov. Suffrutescentes vel herbae 
perennes, foliis alternis lanceolatis integris, capitulis majusculis vel 
magnis solitariis caulem et ramos terminantibus, phyllariis invo- 
lucri 3-5-seriati gradati lanceolatis basi paullum induratis. — 
Species typica Helianthus revolutus Meyen (= V. revoluta (Meyen) 
Blake). — Three species of Chile and adjacent Argentina. 
a. Stem sires 8 hispid; leaves tuberculate-hispid above 
With Onin WAND. 6 oo is os Cor is nk 69. V. Gilliesit. 
a. an and leaves not spreading-his pid, b. 
Stem loosely spreading-pilose es densely glandular- 
tuberculate and sakes tea “spreading: pilosulous: 
venice 3-seriate, wager spreading-pilosulous and : 
glandular-tuber nie eae 70. V. adenotricha. 
b. Stem not spreading-pilose cians strigose, rarely spread- 
ing-hisp idulous; involuere 3—5-seriate, tuberculate- 
strigillose or hispidul oe eae 71. V. revoluta. 
69. V. Gmuresn (H. & A.) Hieron. Herbaceous ?, branched, 
the stem slender, tuberculate-strigillose- and -hispid with spreading 
hairs. Leaves often with short leafy branches in their axils, nar- 
rowly lanceolate, broadest near the base, long-acuminate, entire, 
