Blake — A Revision of the Genus Viguiera 143 
scarcely striate. Leaves usually opposite below, alternate above, 
ovate or rarely lance-ovate or somewhat oval-oblong, acute to 
subacuminate, at base cuneate to rounded and usually slightly 
oblique, irregularly serrate to subentire, triplinerved, rather thin 
or thickish, above dark green, rather densely and harshly tubercu- 
late-hispidulous or -hispid with ascending or subappressed hairs, 
the tuberculate bases conspicuous in age, beneath slightly paler 
green, rather densely hispid-pilose with subascending more or less 
tuberculate-based hairs along the veins, sparsely hispid-pilose with 
shorter hairs between them and more or less gland-dotted, slightly 
veiny, 3.3-6.5 em. long, 1.7~3.2 em. wide; petioles tuberculate- 
hispid and hispidulous, 3-6 mm. long or shorter; the upper leaves 
reduced, sometimes subtending sterile branches. Heads about 
3-10, 3-6 cm. wide, on terminal and axillary peduncles, these 
rather densely tuberculate-hispid-pilose and -hispidulous with 
spreading hairs and more or less glandular, naked or bracted, 
19 em. long or usually much less; disk 9-13 mm. high, 14-19 mm. 
thick. Involucre 3-seriate, slightly graduated, 6-9(—12) mm. high, 
the phyllaries oblong to lance-oblong, acutish to obtuse, mostly 
ose-mucronulate, appressed or with the tips somewhat loose 
but scarcely reflexed, blackish-green, with slightly indurated and 
costate base (mostly subglabrous except for marginal pubescence) 
and densely appressed-hispid-pilose and _hispidulous-pilosulous 
herbaceous apex, the outer sometimes densely tuberculate-hispid- 
pilose throughout. Rays 14-18, oval to narrow-oblong, 16-20 mm. 
long, 3.5-6 mm. wide; disk-corollas puberulous below and on teeth 
or subglabrous, 4:5-5.5 mm. long (tube 1 mm.). Pales strigillose 
toward the dark apex, shortly acute, submucronulate, 6.5 mm. 
long. Achenes more or less appressed-pilose on margin and down 
_ Sides, 3.3 mm. long. Awns slender, 2-3 mm. long; squamellae 
4-8, fimbriate-lacerate or lobed, unequal, free, 0.5 mm. long or 
less, apparently sometimes lacking. — Perkins! Bot. Jahrb. xlix. 
226 (1913). Helianthus calvus Sch. Bip. ! Bull. Soc. Bot. Fr. xii. 
79 (1865), nomen; Linnaea xxxiv. 528 (1865-66), nomen. H. Man- 
donii Sch. Bip. var. {innom.] Sch. Bip.! ll. ec., sine deser. Viguiera 
calva (Sch. Bip.) Britton, Bull. Torr. Club xix. 149 (1892), nomen. 
V. punensis Blake! Bot. Jahrb. liv. Beibl. No. 119. 48 (1916). — 
PERU: Pachacayo, 27 March 1913, C. H. T. Townsend 1506 
(U.S.); rocky limestone meadows, Azangaro, Dept. Puno, 4000 m., 
