420 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
2, unequal, 1.5 to 2 mm. long, united into a cup at base with the 8 to 10 irregularly 
lacerate, much shorter squamellae. 
Type Locauity: Near Chapadao de Nostra Senhora d’Abadia, Goyaz, Brazil. 
SPECIMENS EXAMINED: 
Braziu: Arid upland campos near Chapadao de Nostra Senhora d’Abadia, Prov- 
ince of Goyaz, May, 1840, Gardner 4239 (type collection; G, K). Between 
Bom Jesus and Fazenda Seca, Province of Goyaz, Burchell 7553 (G, K). 
Oyedaea humboldtiana is distinct in its herbaceous habit, solitary head, and few small 
leaves. 
11. Oyedaea trachyphylla Blake, sp. nov. 
Herbaceous (?), trichotomous, leafy; stem stoutish, striate, densely hispid-pilose with 
loose spreading hairs with persistent tuberculate bases; leaf blades 7.5 to9 cm. long, 4 to 
5.5 cm. wide, ovate or broadly ovate, acuminate, at base broadly cuneate, obscurely ser- 
rulate with depressed teeth, slightly revolute, obscurely triplinerved above the base, 
above dull green, rugulose, harshly tuberculate and tuberculate-strigose, the tubercles 
thick and persistent, beneath slightly paler, reticulate-venose, scabrous, along the 
larger veins tuberculate-hispid and hispidulous, gland-dotted, along the ultimate 
veinlets minutely tuberculate-hispidulous; petioles densely tuberculate-hispid and 
minutely granulose, scarcely margined, 3 to 7 mm. long; heads 2.5 cm. wide, solitary 
at tips of branches and in the forks of the stem, on tuberculate-hispid and glandular 
striate peduncles 2.5 to 4.5 cm. long; disk 9 to 10 mm. high, 9 to 11 mm. thick; 
involucre 3-seriate, scarcely graduated, 9 to 11 mm. high, the phyllaries oblong, acute, 
about 3.5 mm. wide, below more or less indurate, pale, subcostate, tuberculate- 
strigose or strigose-hispid and granular, the apex shorter, loose, rather abruptly 
herbaceous, tuberculate and tuberculate-strigose; rays yellow, neutral, oblong, 
hispidulous on back, 6 mm. long, 1.5 mm. wide; disk corollas yellow, strigillose on 
teeth and at base of throat, 5.5 mm, long (tube 2 mm.); pales narrow, carinate, acute, 
minutely spinulose-ciliolate at apex, 8 mm. long; achenes fuscous, somewhat 
thickened, sparsely pilose, 4 mm. long, 2.2 mm. wide, the wings narrow, subauriculi- 
form at apex of achene, united with the corona; awns 2, linear-lanceolate, about 
equaling the squamellae and united with them below; squamellae about 12, fimbriate- 
lacerate, subequal, united into a corona 0.6 mm. high. 
Type in the Kew Herbarium, collected near Rio de Janeiro, Brazil, 1878 or 1879, 
by A. Glaziou (no. 10985). Fragments in the Gray Herbarium. 
This species is readily distinguished by its inflorescence. 
12. Oyedaea ovalifolia A. Gray, Proc. Amer. Acad. 5: 183. 1861. 
Oyedaea ampeloides Hemsl. Biol. Centr. Amer. Bot. 2: 176. 1881. 
Reclining or climbing shrub, 3 to 6 meters long or more; stem striate, strigillose, 
in age glabrate but tuberculate; leaf blades 8 to 18.5 cm. long, 5 to 8 cm. wide, oval 
to ovate, acute or rarely obtuse, apiculate, at base cuneate or rounded, crenate- 
mucronulate, firmly pergamentaceous, harshly tuberculate-strigillose above, in age 
lepidote, beneath scarcely paler, sparsely strigillose, with the hairs longer along the 
veins, triplinerved above the base, reticulate on both sides with even the tertiary 
veins prominulous; petioles tuberculate-strigillose and sparsely ciliate, 5 to 17 mm. 
long; heads 3 to 5.5 cm. wide, several or numerous in an open panicle (its spreading 
branches usually exceeding the leaves), on tuberculate-strigillose pedicels 1.5 to 7 
cm. long; disk 9 to 13 mm. high, 11 to 20 mm. wide; involucre 3-seriate, graduated, 
4 to 5.5 mm. high, the phyllaries triangular-ovate to oval, obtuse to rounded or the 
outermost acutish, appressed, strongly indurate, with narrow subherbaceous or 
subscarious margin, finely tuberculate-strigillose and ciliolate; rays about 12 to 15, 
narrowly elliptic-oblong, emarginulate, 9 to 24 mm. long, 2 to 5 mm. wide; disk 
corollas glabrous except for the finely hispidulous teeth, 6 to 6.5 mm. long (tube 
1.6 to 1.8 mm.); pales lacerate above, cuspidate-acuminate, strigillose at apex, 7 to 
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