178 Contributions from the Gray Herbarium 
PARAGUAY: Sierra de Amambay, Dec. 1907-08, Rojas (distr. 
Hassler) 9889 (Ber., photog. and fragm. G.). 
133. V. pensrroia Baker. Erect, over 1 m. high; stem stout 
(0.7 em. thick below), striate-angulate, tuberculate-strigillose 
especially below and in the inflorescence. Leaves crowded espe- 
cially below, linear, acutish, callose-mucronate, thick, entire, 
strongly revolute, 1-nerved and strongly feather-veined, the edges 
often revolute to midrib, above pale green, densely lepidote- 
tuberculate-strigillose, beneath strigose on midrib, densely and 
canescently puberulous and more or less gland-dotted between 
midrib and margin, the lower 11-11.5 cm. long, 2-3 mm. wide, the 
upper shorter and less revolute, those just below the inflorescence 
2.5 cm. long, 2.5 mm. wide. Heads 10-15, 3-4 em. wide, on strigil- 
lose-tuberculate peduncles 3-16.5 em. long; disk 1.1-1.2 em. high, 
1.6-1.8 em. wide. Involucre 5-seriate, 1-1.1 cm. high, the phyl- 
laries tuberculate-strigillose on their exposed faces, callose- 
mucronate, strongly indurated and ribbed below, the mostly 
shorter acuminate herbaceous apex loose or subappressed, the 
outermost linear-lanceolate (6 mm. long, 1 mm. wide), the inner- 
most oblong-lanceolate, acuminate from above the middle. Rays 
16, 1.5-1.8 cm. long, 2.5-4 mm. wide; disk-corollas puberulous 
and gland-dotted below, 3.5 mm. long (tube 0.6 mm.). Pales 
abruptly acute, somewhat erose near the slightly strigillose ape*, 
7.5 mm. long. Achenes very sparsely strigose, 3.1 mm. long, 13 
mm. wide. Awns paleaceous, 2.6 mm. long, united with the ca. 6 
squamellae (about 2 mm. long) nearly to the apex of the latter, 
the whole forming a paleaceous toothed cup, purplish-tinged at 
apex. — Baker! in Mart. Fl. Bras. vi. pt. 3. 219 (1884)-— 
PARAGUAY: campos, Caaguazt, 24 March 1876, Balansa 858 
(rypr: K., fragm. G.); Caaguazi, March 1905, Hassler 9075 (B. 
M.). — T. 3. Fie. 16. : 
134. V. LingaRIFOLIA Chod. Erect, 1-1.5 m. high, the stem 
slender, somewhat flexuous, whitish, finely lepidote-strigillose, 
bearing about 10 long-peduncled heads from the upper 2%!S- 
Leaves linear-filiform, flexuous or scythe-shaped, 1-nerved, green 
and slightly lepidote-strigillose above, strongly revolute, only the 
midrib visible beneath, 14-18.5 em. long, 1-1.5 mm. wide. *& 
duncles 7.5-14 cm. long; heads 3.7-5.2 em. wide; disk 1.1—1.4 cm 
high, 1.5-2 em. thick. Involucre 3-4-seriate, subequal or the outet 
