Blake — A Revision of the Genus Viguiera 123 
c. Leaves not lepidote above; plants of Brazil and Para- 
é. Pretest 9-12 mm. high; disk-corollas 4—4.5 mm. 
poche ears Sue eens 81. V. Bakeriana. 
late, g. 
g. Middle leaves 1.6-2.6 em. broad.......... 82. V. subdentata. 
g- Middle leaves 3-4.5 cm. broad, h. 
h. Stem glabrate below, tuberculate-strigillose 
ve; lower leaves tuberculate-hispi- 
dulous; phyllaries tuberculate-hispid 
OO CHING oe GS fe oe ek 74. V. squalida. 
h. Stem sparsely hispid; lower leaves hispid; 
phyllaries se on margin and 
ric tt 111s eames era Matiney MMB Gago epee cc A 75. V. Weddellii. 
e. Involucre 1.5-2.3 em. high; disk-corollas 5.5- 
.3 mm. long, 7. 
i. Phyllaries tuberculate-strigillose, more or less 
hispidulous-ciliate; leaves strigose-pilose 
both sides; stem loosely pilose with slightly 
i i r retrorse hairs, more or 
less strigillose; squamellae free, 0.6 mm. 
ong: Drawn se oaks eo s cas 76. V. grandiflora. 
i. Phyllaries densely and minutely tuberculate, 
scarcely ciliate; leaves tuberculate-hispid- 
ulous, tuberculate-hispid along veins be- 
neath; squamellae united to apex, 1.6 mm. 
Mamas Parneisings 30 6 hs 77. V. simulans. 
z. Phyllaries puberulous on back, densely pilose- 
ciliate on sides; leaves above pu 
and pilose, beneath loosely pilose along 
veins; stem glabrescent or sparsely pubes- 
estes Sere ee ee 78. V.macropoda. 
72. VY. PERUVIANA Gray. Herbaceous (only upper portion seen), 
branched, the stem tuberculate-hispid-pilose with spreading hairs, 
in age dull fuscous and glabrate except for the persistent bases of 
the hairs. Leaves alternate, subremote, oval, acutish at each end 
or obtusish at the mucronulate apex, crenate-serrate with 5-8 pairs 
of rather depressed submucronulate teeth, 3-nerved, slightly 
veined beneath, above dark green, tuberculate-strigillose, in age 
lepidote and somewhat scabrous, beneath slightly paler green, 
rather sparsely hispidulous with subappressed hairs chiefly along 
the veins, the upper 3-5 cm. long, 1.5-2.5 em. wide, on petioles 
about 1.5 mm. long. Heads terminating stem and branches, about 
8 cm. wide, solitary on short or rather long naked peduncles 
densely spreading-hispid-pilose with tuberculate-based _ hairs; 
disk 1.3 em. high, 2 cm. thick. Involucre 3-seriate, scarcely gradu- 
ated, 1.3-1.5 em. high, the phyllaries oblong-lanceolate, acute or 
acuminate, herbaceous with only slightly indurated base, blackish- 
