14 Contributions from the Gray Herbarium 
leaves; disk 9-11 mm. high, 9-15 mm. wide. Involucre (excluding 
outermost leaf-like bracts, which are 1-1.2 em. long) about 3- 
seriate, the outermost phyllaries herbaceous, obovate, acutish, 
crenulate, like much reduced stem leaves, the inner oblong, 
chartaceous-coriaceous, obtusish, pilosulous down middle of back, 
ciliate at tip. Rays yellow, oblong, rather deeply 2-3-fid, 6 mm. 
long, 1.5 mm. wide, pilosulous dorsally; disk-corollas sparsely 
pubescent on teeth, 5 mm. long (tube 1 mm.). Pales scarious- 
indurated, ciliolate on the narrowed keel, pilosulous at the acute 
apex, 8.5 mm. long. Achenes (immature) ciliate on margin, 
i-nerved on sides, strongly 2-awned, the awns trigonous, ciliate 
on back, subequal, 3.5 mm. long, the lateral nerves of achene 
sometimes produced into a short tooth. —Oyedaea rotundifolia 
Baker! in Mart. Fl. Bras. vi. pt. 3, 208 (1884). Serpaea rotundt- 
folia Sch. Bip. ex Baker |. c. as syn. — Braziu: Minas GERAES: 
Sera de Caraga, R. Mendonca 68 (tracing G, ex hb. Klatt); SAo 
Paoto: near San Carlos, Riedel 1852 (rypE coLu.: GK); without 
definite locality, Glaziow 16162 (K). 
5. B. BRasILIANUM Cass. ‘ Herbaceous perennial,’ about 6 
dm. high, erect, subsimple or branched. Stem densely sordidly 
subtomentose-villous and glandular, bearing 4-9 heads. Leaves 
opposite, broadly ovate, subacute, rounded at base, regularly 
serrulate with 20-25 pairs of depressed teeth, distinctly 3-nerved, 
dull green above, glandular and roughish with dense short tuber- 
culate-based hairs, beneath densely gray-tomentose, 3-6 cm. long, 
2.2-4.2 em. wide; petioles sordidly villous-tomentose and glandu- 
lar, 4~7 mm. long. Heads terminal and from the upper axils, 1.7 
em. wide, on mostly monocephalous peduncles 1.2-8 cm. long; 
disk 8.5-10 mm. high, 11-13 mm. wide. Involucre 3-seriate, the 
outer phyllaries 4, herbaceous, obovate to orbicular-obovate, 
denticulate, reticulate, sordidly glandular-tomentose, resembling 
reduced stem leaves, slightly exceeding the inner phyllaries, 2 
little shorter than disk; inner phyllaries oblong, subacute, sub- 
corlaceous-scarious, somewhat indurated, glandular-tomentulose, 
at length more or less glabrate. Rays about 8, oblong-ovate, 3 mm. 
long, 1 mm. wide; disk-corollas puberulous on the teeth, 4.1 mm. 
long (tube 0.5 mm.). Receptacle conical; pales scarious-margined, 
acute, glandular-puberulous at apex, 7 mm. long. Achenes 
slightly thickened, black, with a few hairs above, 3.4 mm. long, 
