BLAKE—REVISION OF FLOURENSIA. 403 
peduncles 1 to 5.5 cm. long, nodding in fruit; disk 9 mm. high, 8 mm, thick; involucre 
about 2-seriate, 7 mm. high, the phyllaries subequal, few (about 14), the outer linear- 
lanceolate, the inner ovate-lanceolate, obtuse or acute, slightly resinous-granular and 
very sparsely ciliolate; rays about 8, oblong, 6 to 7 mm. long, 2.5 mm. wide; disk 
corollas glabrous, 4 mm. long (tube 0.6 mm.); pales obtuse, resinous at apex, 6.5 mm. 
long; immature achenes silky, 3.5 mm. long; awns 2, slender, unequal, ciliolate, 
about 4 mm. long; squamellae none. 
Type in the Berlin Herbarium, collected in the vicinity of Los Corrales, Sierra 
Famatina, Province Rioja, Argentina, February 7, 1879, by G. Hieronymus and 
G. Niederlein (no. 635). Photograph and fragments in the Gray Herbarium. 
ADDITIONAL SPECIMENS EXAMINED: 
Arcentina: Between El Jaguel and Los Cortaderos, Cordillera de la Rioja, 
February 21, 1879, Hieronymus & Niederlein 264 (Ber., fragm. G). 
Readily separated from all other species of the genus by its hirtous leaves and 
branches. 
13. Flourensia fiebrigii Blake, Bot. Jahrb. Engler 54: Beibl. 119: 47. 1916. 
Branching shrub, probably erect, the younger branchlets brown, resinous-granulose, 
loosely puberulous, the older ones gray-brown, glabrate; leaf blades 2.7 to 5 cm. long, 
8 to 14 mm. wide, lanceolate or elliptic-lanceolate or slightly obovate, acute to 
acuminate at each end, mucronate, entire, prominulous-reticulate with 10 to 12 
pairs of lateral veins, resinous and especially in youth loosely hispid-pilose; petioles 
narrowly margined, 1.5 to 6 mm. long; heads 1 to 3 at ends of branches, 3 to 4 cm. 
wide; peduncles about 1.5 cm. long; disk 8 mm. high, 8 to 10 mm. thick; involucre 
2 to 3-seriate, 5 mm. high, scarcely graduated, the phyllaries resinous-granular and 
more or less loosely pubescent and ciliate, the outer lanceolate or lance-ovate, acute 
or acutish, the inner oblong-ovate; rays about 10, golden, oblong-oval, 1.2 to 1.6 
cm. long, 6 to 7.5 mm. wide; disk corollas glabrous, 4 mm. long (tube 0.7 mm.); 
pales truncate, mucronate, colorate and resinous at apex, 6 mm. long; immature 
achenes silky, 3.8 mm. long; awns 2, subequal, slender, ciliolate, 2 to 2.2 mm. long, 
sometimes unequally bifid; squamellae none. 
Type Locauiry: Near Paicho, west of Tarija, Bolivia. 
SPECIMEN EXAMINED: 
Bourvia: Slope, summit of pass, altitude 3,200 meters, near Paicho, west of 
Tarija, February 5, 1904, Fiebrig 3050 (type collection; Ber., photo. and 
fragm. G). 
Flourensia fiebrigii is distinguished from other South American species by its narrow 
entire medium-sized prominulous-reticulate leaves and short involucre. 
14. Flourensia polyclada Blake, sp. nov. 
Low shrub, from a thick woody root, the short ascending or procumbent stems much 
branched; internodes short; branchlets short, resinous, pilose above, monocephaloug; 
leaf blades 1.5 to 3.8 em. long, 0.4 to 1 cm. wide, narrowly oblong or elliptic, acute 
at each end, mucronate, entire, with about 4 pairs of inconspicuous lateral veins, 
not reticulate, tuberculate-strigose especially on margin, scarcely revolute; petioles 
obsolete; peduncles terminating branchlets, 1.5 to 4.5 cm. long; heads 2.8 cm. wide; 
disk 8 to 12 (in fruit 16) mm. high, 10 to 12 (in fruit 20) mm. thick; involucre about 
3-seriate, 6 to 8 mm. high, the phyllaries subequal or the inner slightly longer, nar- 
rowly lanceolate, subacute, resinous, rather sparsely pilose; rays 10, oblong-oval, 
13 mm. long, 4.5 mm. wide; disk corollas somewhat resinous on tube and teeth, 4.5 
mm. long (tube 1.1 mm.); pales obtuse, resinous on back, 9.8 mm. long; achenes 
cuneate-obovate, silky, 8.5 mm. long, 3.7 mm. wide; awns 2, unequal, lacerate, 3 to 
4.7 mm. long; squamellae none. 
