Blake — A Revision of the Genus Viguiera 179 
phyllaries generally shorter, 10.5-13 mm. high, the phyllaries 
linear-lanceolate, attenuate, with indurated ribbed body and long 
loose herbaceous tip, finely and sparsely strigillose, the inner 
gradually broader and with shorter herbaceous tips. Rays lemon- 
yellow, about 12, oblong, 1.5-2 em. long, 5 mm. wide; disk- 
corollas puberulous on tube and teeth, 5 mm. long (tube 0.8 mm.). 
Pales narrow, acutish, hooded, densely strigillose at apex, striate, 
8 mm. long. Achenes (submature) silky-villous, 4.5 mm. long. 
Awns paleaceous, up to 3.5 mm. long; squamellae on each side of 
achene united into fimbriate membranes 2 mm. high. —Chod. ! 
Bull. Herb. Boiss. ser. 2. ii. 392 (1902). — PARAGUAY: field 
near Ipe-hu, region of the Yerbales of Maracayti, Oct. 1898-99, 
Hassler 4959 (type couu.: B. M., Ber., G., K.). — T. 2. Fie. 32, 
T. 3. Fie. 15. 
135. V. Rojasii, sp. nov. Herbacea elata, caule foliosissimo, 
foliis innumeris lineari-filiformibus mediis 5.5-7 em. longis 0.8 
mm. latis, involucri 4-seriati 7-8 mm. alti gradati phyllariis gla- 
‘bris vel in margine sparse strigillosis, acheniis sericeis, aristis 
3 mm. longis quam squamellae duplo longioribus cum eisdem basi 
conjunctis. 
Tall, erect, the stem tuberculate-strigillose, very leafy, bearing 
about 15 heads. Leaves very’ crowded, linear-filiform, acute, 
callose-mucronate, strongly revolute, above glabrous or very 
sparsely strigillose, beneath densely white-tomentulous between 
costa and margin, the middle ones 5.5-7 em. long, 0.8 mm. broad, 
the upper smaller. Peduncles erect, bracteate, angulate-striate, 
monocephalous, 5-13.5 em. long; heads 3 em. broad; disk 1-1.1 em 
high, 1.1-1.6 em. wide. Involucre 4-seriate, graduated, 7-8 mm. 
high, the phyllaries glabrous or sparsely strigillose on margin, 
indurated and ribbed at base, those of the two outer series linear, 
the others ovate-lanceolate, all callous-mucronate, with herbaceous 
apex. Rays 12, narrowly oblong, 11 mm. long, 2.4 mm. wide; 
disk-corollas sparsely puberulous, 3.5 mm. long (tube 0.8 mm.). 
Pales acute, somewhat pubescent at apex, 7 mm. long. Achenes 
silky, 4.5 mm. long. Awns 2, paleaceous, unequal, 3 mm. long, 
twice as long as the ca. 6 laciniate squamellae and united with them 
at base. — PARAGUAY: plateau and declivities of the Sierra de 
Amambay, April 1907-08, Rojas (distr. Hassler) 10367 (TYPE COLL.: 
B. M., Ber., photog. and fragm. G.). 
