Blake — A Revision of the Genus Viguiera 153 
Herbaceous, erect, branched, the branches divergent-ascending, 
the stem purplish, obscurely striatulate, strigose-pilose with ap- 
pressed hairs scarcely tuberculate at base. Leaves lanceolate, very 
long-acuminate, acuminate or acute at base, callose-mucronate 
at apex, more or less falcate, obscurely serrulate (teeth minute, 
subremote, mucronulate, 7-14 pairs), above green, rather harshly 
strigillose, the hairs scarcely thickened at base, beneath paler, 
along the veins rather softly strigose-pilose (the hairs more or less 
thickened at base), between the veins strigillose-pilosulous, gland- 
dotted, 3-nerved and feather-veined, 6.5-13 cm. long, 9-22 mm. 
wide; petioles unmargined, tuberculate-strigose and _strigillose- 
pilose, 2-6 mm. long. Heads few, 3 cm. wide, on terminal and 
axillary naked or bracteolate peduncles 1.2-11.4 cm. long, ascend- 
ing-strigose-pilose below the heads; disk 1 cm. high, 1.4~(fruit) 
1.6 cm. thick. Involucre 3-seriate, slightly graduated or subequal, 
9 mm. high, the phyllaries lanceolate, acuminate, the outer (some- 
times also the inner) more or less faleate, acutely callose-mucronate, 
at base indurated, costate, glabrate or glabrous (the strigose- 
ciliate margin and strigose costa excepted), above herbaceous, canes- 
cently strigose, 1-nerved. Rays about 12, oblong-oval, emargi- 
nate, sparsely puberulous on back and gland-dotted, 10-11 mm. 
long, 44.5 mm. broad; disk-corollas yellow, below and on veins 
and teeth very sparsely strigillose, 3.6 mm. long (tube 0.7 mm.). 
Pales obtuse to subt te, at apex erose, sparsely strigillose above, 
5.5 mm. long. Achenes black, more or less striate, sparsely strigil- 
lose above, 3 mm. long, 1 mm. broad. Awns 2, lanceolate, acumi- 
nate, paleaceous, fragile, denticulate, 2.2 mm. long; squamellae 
about 6-8, united at base, quadrate, lacerate, like the awns fragile, 
0.5 mm. "long. — PARAGUAY: Cordillera de Villa-Rica, Jan. 
1905, Hassler 8627 (TypE: B. M.). 
_ 105. V. Hilairei, sp. nov. Herbacea foliosa sursum parce ra- 
mosa, caule dense strigilloso, foliis alternis sessilibus inferioribus 
anguste lanceolatis acuminatis basi cuneate acuminatis obscure 
serrulatis utrinque strigillosis vix scabris 913.5 cm. longis 1.7- 
3.1 em. latis, superioribus oblongo-lanceolatis 4-7 em. longis 8- 
10 mm. latis, disco 12 mm. alto, involucri 3-4-seriati gradati phyl- 
lariis lanceolatis acutis infra induratis costatis supra herbaceis 
dense hispidulis et ciliatis vel interdum subglabratis margine cilio- 
lato excepto, radiis ca. 16, acheniis dense sericeis. 

