142 Contributions from the Gray Herbarium 
late to ovate-lanceolate, acuminate, cuspidate, cuneate into the 
subsessile or shortly petioled base or rounded, subremotely serrate 
(teeth 3-9 pairs, appressed) or subentire, green and scabrously 
tuberculate-strigillose both sides, sparsely gland-dotted beneath 
and more or less hispid along the veins, 3-nerved and usually rather 
strongly venose beneath, 7.5-11 em. long, 2.5-4 cm. wide; petioles 
tuberculate-hispidulous, 2-6 mm. long or shorter. Peduneles 
naked or 1-2-bracteate, 1-14 em. long; heads 4 cm. wide; disk 
1-1.4 em. high, 1.5-2 em. thick. Involucre 2-3-seriate, subequal 
or distinctly but slightly graduated, 7-10 mm. high, the phyllaries 
oblong to lanceolate, acute to acuminate, the innermost somewhat 
oblong-obovate, subherbaceous, below somewhat indurated and 
ribbed (rarely strongly so), hispid-ciliate and densely tuberculate- 
strigillose. Rays 14-20, 1.5-2 em. long, 4.5-6 mm. broad; disk- 
corollas tuberculate-strigillose below, yellow, 5-5.2 mm. long 
(tube 0.9-1 mm.). Pales obtuse to subacute, greenish or blackish 
at apex, strigillose on back above, 7 mm. long. Achenes flattish, 
more or less appressed-sericeous, 3.5 mm. long. Awns slightly 
broadened below, 3 mm. long; squamellae 4-6, free, deeply 
lacerate, 0.6 mm. long. — Rusby! Mem. Torr. Club iii. pt. 3. 59 
(1893). Helianthus atacamensis Phil. Anal. Mus. Nac. Chil. 1891. 
48 (1891). Flourensia atacamensis (Phil.) Reiche, Fl. Chil. iv. 9 
(1905). — BOLIVIA: La Paz, 3050 m., 1890, Bang 44 (TYPE 
COLL. of V. pazensis: B. M., Ber., G., K., Mo., U. S.); La Pad, 
3500 m., May 1911, Buchtien 3302 (B. M., U. S.); cotana at Illi- 
mani, 2450 m., Nov. 1911, Buchtien 3300 (U. 8.). CHILE: Tara- 
paca, Philippi (Ber., photog. and fragm. G.). — Philippi’s specie 
was described from a specimen collected near Atacama. +! 
specimen in the Berlin Herbarium, which I am unable to disti- 
guish by any significant character from V. pazensis Rusby, may 
be taken as authentic for his species, agreeing as it does fairly well 
with his very unsatisfactory description. Philippi’s name, althoug 
the older, cannot be adopted for the species because of the valid 
V. atacamensis Phil. (no. 110). 
93. V. Pruanzi Perkins. Herbaceous, erect or ascending, much 
branched or subsimple, about 1m. high. Stem stoutish, greenish oF 
fuscous-green, rather densely and usually harshly tuberculate 
hispid-pilose with more or less spreading hairs, the hair-bases Pe 
sistent, and more or less hispidulous and granular, subteret 
