63 
scarious, oblanceolate to obovate, obtuse or acutish, minutely and 
faintly many- d 
Near snow-line, Mt. Tunari, 1891 (1035). Also collected by 
Pearce at Pelechuco. 
Clibadium Surinamense L. Mant. 2: 294. Espirito Santo, 1891 
1203) — Matthew's 1735 from Peru. This I believe to be one 
of several distinct species included under this name; but for 
the present I follow the Fl. Bras., and place it here. 
Polymnia edulis Wedd. Ann. Sci. Nat. (IV.) 7: (1857) 114. 
Espirito Santo, 1891 (1229). 
Acanthospermum hispidum (Less.) DC. Prod. 5: $22. Between 
Guanai and Tipuani, Apr.-June, 1892 (1445). 
Acanthospermum humile (Less.) DC. Prod. 5: 522.  Turedon, 
1891 (1137). 
Zexmenia, sp. It appears probable that a new genus will have to 
be established for this species which, besides being rayless 
has an involucre quite different from that of any known species 
of Zexmenia. For this reason I prefer not to assign it a spe- 
cific name under this genus. At the same time, the unsettled 
state of the literature of this section of the Compositae forbids 
my proposing a new generic name. 
Between Guanai and Tipuani, April-June, 1892 (1340). 
Verbesina australis (Hook.) Baker in Mart. Fl. Bras. 6: Part 3, 215. 
little below Cochabamba, 1891 (1003). Also collected by 
Pearce at Tarija, Bolivia. 
VERBESINA CINEREA Sp. n. 
Cinereous and scabrous throughout; stems erect, stout, flex- 
uous, 5 dm. high or more; leaves alternate, on very short stout 
petioles, or the upper sessile, 5-15 cm. long, 2—5 cm. broad, lanceo- 
late to ovate, base mostly rounded, apex acutely pointed, coarsely 
and sharply serrate, strigose, coarsely veined, midrib seo 
nent both sides; heads stoutly peduncled, sub-globose, 1.5—2 c 
long ; involucre sub- -hemispherical, I cm. aa the sca A ou in 
about 3 series, the outer shorter, oblong, obtuse or acute, thick 
and rigid, appressed, dark gray with very narrow light margins; 
receptacle convex; chaff enclosing the akene, hirsute and black 
above; akene black, 7 mm. long, 4 mm. broad exclusive of the 
narrow wing which is above broader and ciliate or lacerate ; pap- 
pus of 2 rigid bristles § mm. in length, hispid; corolla-tube 
proper 2 mm. long, densely villous, the upper half abruptly con- 
