New South American Verbesinas 
SP. Breage 
The synopsis of Verbesina published by Robinson and Green- 
man* in 1899 listed 109 valid species, and some 63 additional 
ones have since been described. The 13 new species here pub- 
lished bring the total number to approximately 185, making 
the genus by far the largest in its subtribe and, with the excep- 
tion of Bidens, the largest in the tribe Heliantheae. The present 
paper will be followed by another presenting a rearrangement 
of the section Lipactinia, which has grown more rapidly than 
any other group of the genus since 1899. 
Verbesina Macbridei, sp. nov. 
Herbaceous (?); stem sordid-lanate; leaves alternate, large, 
elliptic, obscurely serrulate, sc abrid above, sordidly pubescent 
beneath chiefly along the veins, on rather png aon petioles; 
heads about 12, medium-sized, yellow, radiate, about 47- Iprtins 
long-peduncled; 1 involucre about 4-seriate, graduate, about 
mm. high; pappus awn I. 
“Coarse, 3 m. high;’’ stem stout, densely and sordidly lanate- 
pilose with matted hairs; petioles stout, naked or very narrowly 
margined above, not auriculate or decurrent, lanate-pilose, I-3.5 
cm. long; Bide elliptic ie obovate-elliptic?), the main ones 
18-23 cm. ba ng or more, - cm. wide or more, acuminate at 
sordid-hirsutulous with s preading hairs Silas the wee ee ins 
and costa, sparsely so chvewhere: featherveined, the chief veins 
about I1 pairs, prominulous on both sides, ‘the secondaries 
loosely pi eREaIdiueotiilate beneath; tufts of oblanceolate 
leaves about 12 cm. long and 2.5 cm. wide e present in the upper 
axils; heads in bi of rb on terminal and axillary peduncles, 
these 6.5-10 cm. long, the pedicels sordidly pilose-tomentose, 
5.512 cm. lone subtended by very small linear bracts; disk 
ete I % cm. high, 1 cm. thick, in young fruit about I cm. ‘high, 
ick; involucre about 4-seriate, graduate, about 8 mm. 
high. “i Bhoilitios linear-oblong to oblong, sometimes spatulate, 
hispidulous-ciliolate and sparsely hirsutulous, with indurate 
* Proc. Amer. Acad. 34: 534-566. 1899. 
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