370 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Encelia canescens var. parvifolia J. Ball, Journ. Linn. Soe. xxii. 
151 (1887). 
Pallasia procumbens Spreng. Sys. iii. 610 (1826). 
Encelia paucifolia Walp. Linnaea xiv. 505 (1840) [err. cler.]. 
Encelia pilocarpa Rusby, Bull. N. Y. Bot. Gard. viii. 131 (1912). 
Specimens examined: Peru: Arequipa, 8 Aug. 1901, Williams 
2526 (GN, type number of E. pilocarpa); without definite locality, 
McLean (G); Curut: desert of Atacama, Sept.—Oct. 1890, Morong 
1311 (FGN, distr. as E. tomentosa Walp.); sandy places near Caldera, 
May 1882, Ball (G). With no locality: Wilkes Expl. Exp. (N). 
9y. E. cANESCENS Lam. var. TOMENTOSA (Walp.) J. Ball. Appar- 
ently more frutescent; stem and the small broadly ovate blunt short- . 
petioled leaves densely white-woolly. 
Encelia tomentosa Walp. Linnaea xiv. 504 (1840). 
Encelia canescens var. tomentosa J. Ball, Journ. Linn. Soc. xxii. 160 
(1887). 
Specimens examined: Soutn America: Wilkes Expl. Exp., without 
locality (N). Walpers says of his species: “e Chili misit Filter.” 
95. E. canescens Lam. var. oblongifolia (DC.) Blake, n. comb. 
Leaves oblong-lanceolate to rhombic-ovate, somewhat less pubescent 
than in the typical form, about the shape of those of var. parvifolia 
but much less pubescent; heads apparently fewer, on much longer 
peduncles. 
Encelia oblongifolia DC. Prod. v. 567 (1836). 
Specimens examined: Cutt: Coquimbo, Gaudichaud 85 & 86 (G, 
coTYPE); Coquimbo, July—Aug. 1856, Harvey (G); without definite 
locality, Gay (G). 
— — Pubescence harsh; — racemose, on peduncles about 3 cm. long; 
plan f the Galapagos Islands. 
10. E.HIspra eet bua, erect, 0.6—1 m. high, canescent 
with a dense hispid pubescence, the branches striate; leaves oblong, 
cuneate at base, subentire or repandly toothed, 4-5 em. long, 1.4-2.2 
cm. broad, on spreading-hirtous petioles 1-1.8 cm. long, appressed- 
hirsutulous above, more densely so beneath particularly along the 
veins; heads racemose in inflorescences terminating the branches, 
the arcuate-spreading peduncles linear-bracted at base, 2-3.5 em. long, 
densely villous-hispid; heads small, 8 mm. high, 9-11 mm. wide 
exclusive of rays; involucre 4-5 mm. high, the scales lanceolate, 2- 
seriate, somewhat unequal, densely villous-hispid, the outer a little 
loose; rays oval, tridentate, pubescent on the back, 4.2 mm. long; 
disk-corollas 3.5-4.5 mm. long, the short tube and teeth pubescent; 
