Blake — A Revision of the Genus Viguiera 65 
inflorescence lanceolate; heads 4.5 em. wide; disk 1—(fruit)1.5 em. 
high, 9—(fruit)15 mm. wide. Involucre 2-seriate, 6-9 mm. high, 
the phyllaries oblong-lanceolate, subacute, graduated, hispidulous- 
pilosulous, with dark center and narrow pale margin, scarcely 
indurated, the lanceolate apex herbaceous, subappressed. Rays 
about 8, 1.7 cm. long, 7 mm. wide; disk-corollas hispidulous below, 
6.5 mm. long (tube 1.3 mm.). Pales narrow, truncate and minutely 
erose at apex, the keel greenish, 10-11.5 mm. long. Achenes (sub- 
mature) silky-villous, 5-6 mm. long. Awns linear-oblong, rather 
easily deciduous, 4.5 mm. long; squamellae 4-8, unequal, slightly 
united at base, 1.5 mm. long. — Blake, Proc. Am. Acad. xlix. 375 
(1913). Encelia Pringlei Fernald! ibid. xxxv. 573 (1900). Not V. 
Pringlei Rob. & Greenm. (1894).— MEXICO: Hinateo: hill- 
sides above Pachuca, 2745 m., 14 Sept. 1899, Pringle 8248 (TYPE 
cott.: B. M., G., K.); Pachuca, 5 Sept. 1910, Oreutt 3912 (U. 8.). 
Mexico without definite locality: C. Ehrenberg 352 (Ber.); 20 
Nov. 1885, Schumann 138 (Ber.). — T. 2. Fic. 4, T. 3. Fies. 4, 19. 
19. V. MacuLata (Brandegee) Blake. Much branched shrub, 
with opposite branches, the bark gray, the young branches pur- 
plish-brown, more or less sordid-pubescent with appressed hairs. 
Leaves opposite, ovate to ovate-lanceolate, acuminate, truncate to 
rounded at base, then attenuate into the petiole, obscurely serru- 
late, lepidote-strigillose and very scabrous above, hispidulous and 
glandular-dotted beneath, concolorous, 3-nerved, venose beneath, 
5-6.5(—“12”) em. long, 1.7-3.5(-‘5”) em. wide; petioles 
scarcely margined, puberulous above, 5-7 mm. long. Heads in 
cymose panicles of 5-8 at tips of branches, 2.7-3.5 em. wide; 
peduncles 1-3 cm. long; disk 9-11 mm. high, 9-12 mm. wide. 
Involucre 3-seriate, graduated, 6-7 mm. high, the phyllaries oblong, 
acute, loosely pilosulous especially on margin, with slightly thick- 
ened subcoriaceous vittate broadly pale-margined body and abrupt 
subherbaceous mucronate triangular tip. Rays 6, 9-15 mm. long, 
4.5-5 mm. wide, sometimes styliferous but sterile; disk-corollas 
sparsely hirtellous on tube and teeth, 5.5 mm. long (tube 1.7-2 
mm.). Pales acute, pilosulous and slightly glandular above, 7 mm. 
long. Achenes (immature) silky-villous on margin and above, 
3mm. long. Awns acute, one often deciduous, 2.5 mm. long, 1 mm. 
wide; squamellae about 4, roundish, fimbriate, 1 mm. long. — 
Blake! Proc. Am. Acad. xlix. 374 (1913). Encelia maculata 
