Blake — A Revision of the Genus Viguiera 157 
1858, Gibert 1428 (K.); stony ground, Montevideo, Jan. 1877, 
Arechavelata 4121 (K., fragm. G.). BRAZIL: without definite 
locality, Sello (G., U. 8.); Rio GranpE po Sut: Herb. Imp. 
Brésil 875 (type of L. anchusaefolia: Par., Prod.), 878 (rypx of 
L. lomatoneura: Par., Prod.), 881 (Trpx of L. dissitifolia: Par., 
Prod., photog. G.). South America without definite locality 
(Montevideo ?), Baldwin (type of L. Baldwiniana: B. M.., 
tracing G.). 
Var. immarginata (DC.), comb. nov.: foliis linearibus vel 
lineari-oblongis 2.5-8 cm. longis 2.5-8 mm. latis. — Leighia im- 
marginata DC. 1. ¢. L. stenophylla H. & A.1.¢. V. stenophylla (H. 
& A.) Griseb. 1. c. Helianthus angustifolius Spreng. (not L.) and 
H. montevidensis Spreng. ex Baker, 1. ec. — URUGUAY: Monte- 
video, Capt. King 203, 204 (B. M.), fields, Feb. 1867, Gibert 118 
(K.), Gillies 70 (K.), Tweedie 875 (cotyrx of L. stenophylla: K.), 
March 1875, Arechavelata 4115 (K.); near the top of Montevideo 
Hill, Gillies 868 in part (K.); near the Santa Lucia River, March 
1869, Gibert 984 (K.); west of Rio Grande, 1837, Tweedie (K.); 
Fray Bentos, Feb. 1877, Arechavelata (K.). BRAZIL: without 
definite locality, Sello 2509 (K.); Rio GranvE po Sut: Herb. Imp. 
Brésil 1052 (type of L. immarginata: Par., Prod.). ARGENTINA: 
Buenos Aires, Tweedie (coryrx of L. stenophylla: K.). 
109. V. discoidea (Griseb.), comb. nov. Herbaceous, erect, the 
stem strigillose, often gland-dotted, leafy, at apex cymosely 
branched, bearing 5-9 heads. Leaves alternate above, t’10se of the 
branchlets opposite, linear or linear-filiform, acuminate, sessile, 
more or less revolute, above tuberculate-strigillose, beneath 
densely canescent-strigillose and gland-dotted, 1-nerved, 3.5-8 em. 
long, 1.2-6.8 mm. wide. Peduncles linear-bracted, monocephalous, 
2.5-10.5 em. long; heads discoid, 1-1.3 em. high, 1-1.5 em. thick. 
Involucre 4—5-seriate, graduated, 6-7.5 mm. high, the phyllaries 
oblong, acutish, densely strigillose and strigose, more or less gland- 
dotted, or in age subglabrate, rather strongly indurated and ribbed 
below, with short herbaceous apex, the outer reflexed at tip. Disk- 
corollas yellow, sparsely puberulous, 5.2 mm. long (tube 1 mm.). 
Pales truncate, erose at tip, sparsely hispidulous on back, 7.5 mm. 
long. Achenes sparsely sericeous, 3.5 mm. long. Awns 2.5 mm. 
long; squamellae about 8, unequal, laciniate, 1-1.5 mm. long. — 
V. stenophylla (H. & A.) Griseb. var. discoidea Griseb. ! Goett. Abh. 
