y nee 
BLAKE—REVISION OF OYEDAEA. 419 
altitude 1,000 to 1,200 meters, 1917, Pittier 7545 (N). Tovar, Moritz (G, K); 
1854-55, Fendler 680 (G, K). Frequent in subalpine region, 1865, Ernst 726 
(B). Without definite locality, 1842-43, Funck 364 (B, K); in 1865, Moritz 
1990 (B). 
TrintpaD: Botanic Garden Herbarium 3388 (N).!° 
Oyedaca verbesinoides, the commonest of this genus in herbaria, is a somewhat variable 
species, as might be expected from its comparatively wide range. The material from 
Costa Rica and Panama commonly has leaves more softly and densely pubescent 
beneath, and broader phyllaries, but the differences between the Central and South 
' American specimens are neither constant nor of much importance, and after study 
of all the material available I have found it necessary to unite with O. verbesinoides 
both of Bentham’s species as well as two manuscript segregates of my own. As thus 
constituted, the species is readily recognized by its usually large, triplinerved leaves, 
comparatively large heads, and phyllaries with long herbaceous tips. In Venezuela 
it is known as ‘‘tarilla” and ‘‘tara amarilla,’’ according to Pittier. 
9. Oyedaea bahiensis Baker in Mart. Fl. Bras. 6°: 206. 1884. 
Herbaceous perennial; stems decumbent, at apex assurgent, sparsely branched, 30 
to 45 cm. long, hispid; leaf blades numerous, linear, acuminate, sessile, narrowed to 
base, entire, the middle ones 7.5 to 10 cm. long, 6 to 8 mm. wide, the lowest much 
shorter, oblong, acute, rather firm, green and hispid on both sides; heads 1 to 4, 
terminal on hispid peduncles 5 to 10 cm. long; involucre campanulate, 1 to 1.2 cm. 
high, the phyllaries 2-seriate, lanceolate, acute, hispid, foliaceous, the outer longer; 
rays oblanceolate, 2.5 cm. long, 6 mm. wide; achenes obovate, compressed, 4 mm. long, 
narrowly winged, the wings produced above into lanceolate teeth; awns about 1 mm. 
long, twice as long as the minute pappus cup. 
TypPE LocALity: Bahia, Brazil. 
SPECIMEN EXAMINED: 
Braziu: Province of Bahia, in grassy places, Martius (sketch of type; K). 
This species, of which I have seen only the sketch of the type in the Kew Herbarium, 
is distinguished from all other species of the genus by its linear leaves. It may yet 
prove to belong to Aspilia. The description given above is translated from Baker’s 
original. 
10. Oyedaea humboldtiana (Gardn.) Benth.; Baker in Mart. Fl. Bras. 67: 206. 1884. 
Viguiera humboldtiana Gardn. Lond. Journ. Bot. ‘7: 398. 1848. 
Herbaceous perennial; stems several, erect from a woody root, slender, subsimple or 
with a few short branches above, strigillose and shortly strigose-pilose, subglabrate 
below, sparsely leafy, monocephalous, 25 to 35 cm. high; leaves 3 to 5 pairs, remote 
(the lower smaller), the blades 1.5 to 3.5 cm. long, 7 to 10 mm. wide, oblong to ovate, 
acute to subobtuse at apex, sharply serrulate above the cuneate-rounded base, appressed- 
pubescent chiefly along the veins and margin and gland-dotted on both sides, tripli- 
nerved; petioles 1.5 mm. long or leas, appressed-pubescent; peduncle 3 to 20 cm. long, 
naked or 1-bracteate, strigillose and strigose; head 4 to 5.8 cm. wide; disk 9 to 11 mm. 
high, 12 to 17 mm. wide; involucre 2-seriate, the other phyllaries foliaceous, oblong or 
oblong-spatulate, acutish, denticulate above the middle, appressed-pubescent and 
gland-dotted, 1.2 to 2.4 cm. long, the inner much shorter, indurate below, herbaceous 
above, appressed-puberulous, acuminate; rays about 14, oblong, tridenticulate, pubes- 
cent on tube, 1.2 to 2.3 cm. long, 5 to 7 mm. wide; disk corollas glabrous, 4.2 mm. 
long (tube 0.7 to 1 mm.), the throat subcampanulate-funnelform; pales subscarious, 
narrow, nearly glabrous, abruptly short-acuminate, spinulose-denticulate near apex, 
7.5 to 10 mm. long; achenes at full maturity cuneate-obovate, thickened, 4-angled, 
4-winged, crustaceous-bullate on the sides, 4.5 to 4.8 mm. long, 3 to4 mm. wide; awns 
10 Perhaps not a native specimen. 
