404 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Type in the Berlin Herbarium, collected between La Cueva and La Incrucijada, 
Sierra Famatina, Province Rioja, Argentina, January 31, 1879, by G. Hieronymus 
and G. Niederlein (no. 541). Photograph and fragments in the Gray Herbarium. 
ADDITIONAL SPECIMEN EXAMINED: 
Argentina: La Incrucijada, January 29 to February 3, 1879, Hieronymus & 
Niederlein (Ber.). 
From F. niederleinii, its only near relative, this species differs in its narrow leaves 
and narrowly lanceolate phyllaries, these not dilated at base. 
15. Flourensia niederleinii Blake, sp. nov. 
Branching shrub, probably procumbent or ascending, the younger branchlets 
resinous-granular, sparsely setose-hispidulous, the older ones gray, glabrate; leaf 
blades 2.3 to 3.5 cm. long, 1.1 to 1.8 em. wide, ovate to oblong-ovate, acute, mucronate, 
cuneate or rounded at base, entire, with 7 to 10 pairs of lateral veins, not reticulate, 
resinous-granular and rather sparsely strigillose on both sides, along costa beneath 
sparsely hispid-pilose; petioles resinous-granular, more or less hispid, 3 to 8 mm. 
long; heads 1 to 3 at apex of branches, 2.5 to 3.3 cm. wide, on peduncles 2 to 4 cm. 
long; disk 8 to 11 mm. high, 1 to 1.3 cm. thick; involucre 2-seriate, 7.5 to 9 mm. high, 
the phyllaries subequal or the outer frequently longer, linear-lanceolate or linear- 
spatulate from a short, lance-ovate, blackish green base, resinous-granular and 
sparsely hispidulous; rays about 8, oblong-oval, 1.2 to 1.6 cm. long, 4.5 to 6.5 mm. 
wide; disk corollas glabrous, 4 mm. long (tube 0.5 mm.); pales subacute, at apex 
colorate, resinous, and minutely erose, 6.5 mm. long; achenes cuneate-obovate, silky, 
5 mm. long, 2.5 mm. wide; awns 2, ciliolate, at base strongly ampliate and deeply 
lacerate, unequal, about 3 mm. long; squamellaé none. 
Type in the Berlin Herbarium, collected at Cuesta Miranda, Sierra Famatina, 
Province Rioja, Argentina, March 10, 1879, by G. Hieronymus and G. Niederlein 
(no. 876). Photograph and fragments in the Gray Herbarium. 
Flourensia niederleinii is distinguished from F. polyclada by its ovate or oblong- 
ovate leaves, and by its phyllaries, which are linear-lanceolate or linear-spatulate 
from an ovate-lanceolate base; from F. campestris and F. riparia by its characteristic 
phyllaries and its much smaller leaves. 
16. Flourensia campestris Griseb. Abh. Ges. Wiss. Gdttingen 19: 184. 1874. 
Helianthus campestris Kuntze, Rev. Gen. Pl. 37: 157, 1898. 
Branching shrub, about 2 meters high; branches resinous-granulose, somewhat 
hispidulous, the older gray, glabrate; leaf blades 5 to 9 cm. long, 1.3 to 3.4 cm. wide, 
lanceolate to ovate or oblong-lanceolate, acuminate, mucronate, cuneate to rounded 
at base, entire or rarely slightly denticulate with appressed teeth, usually resinous- 
granulose, with about 13 pairs of lateral veins, prominulous-reticulate especially 
beneath; petioles 3 to 13 mm. long; heads in cymose panicles of 5 to 15 at ends of 
branches, on terminal and axillary leafy-bracted peduncles; pedicels 0.8 to 2.5 cm. 
long; heads 2.5 cm. wide; disk 8 to 11 mm. high, 7 to 10 mm. thick; involucre 
2-seriate, 4 to 5 mm. high, the phyllaries lance-subulate, subobtuse, loose, resinous- 
granulose; rays about 8, oval to oblong-oval, 7 to 10 mm. long, 3.3 to 4.3 mm. broad; 
disk corollas about 16 to 23, resinous on the teeth, 4.5 mm. long (tube 0.9 mm.); pales 
truncate-mucronulate, resinous at apex, 8 mm. long; achenes blackish, ciliate on 
the whitish margin, pubescent on the sides, 5 to 6.5 mm. long; awns 2, ciliolate, 3.5 
mm. long; squamellae none. 
Tyre Locaity: Field southeast of Cérdoba, Argentina. 
SPECIMENS EXAMINED: 
ArcEenTINA: Abundant in field southeast of Cérdoba, 1871, Lorentz 245 (type; 
Ber., fragm. G). Puesto de San José, upper side of the Caleras Sierra near 
Cérdoba, 1876, Hieronymus 276 (Ber., N). Sierra Chica de Cérdoba, la 
Falda de la Pumilla, 1876, Hieronymus 623 (Ber., N). Between San Rouque 
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