(134) 
eads 8-10 mm. long, the rays about 5 mm. longer; involucre 
pappus, the ne equal, narrowly lanceolate, long-acuminate 
and acute, apparently fleshy; rays strongly 4-nerved, lightly 
3-toothed; disk- ee Aion exceeding the pappus, infundibular, 
strongly nerved, plicate 2 ribbed above, the lobes short, ovate, 
obtuse; akene short and broad, densely " white- ay those in a 
oung state only seen; a a separate, half the length of the 
corolla, slightly broadened upward, the base ae style-branches 
pee terete, the summit white- penicillate, the hairs short, forming 
ircular band. 
Yara, Peru, 8400 ft., Aug. 10, 1901 (No. 2565). No. 2533, 
from Arequipa, Peru, 7500 ft., Aug. 8, 1901, is the same, but a 
less slender, more contracted form, apparently from an arid 
locality. 
Senecio Williamsii sp. nov. 
Gray-tomentellate, the upper leaf-surfaces strigose; stems erect, 
stout, purple, very leafy; petioles about 12 mm. long, very stout, 
channelled; leaves 10-15 c g, 18-30 road, oval-ovate, 
acuminate both ends, coarsely serrate, the lower third entire, 
thick, the upper surface -green, very scabrous, 1 
small (8-12 cm. broad) or, by the union of many such, on lon 
peduncles in the upper ie bracts, becoming a large, com- 
pound panicle, the heads rather densely massed peduncles mostly 
o-z0 mm. long, linear-bracted; heads a out 15 mm. long, 
exclusive of the rays, which are 6 mm. ie involucre double, 
the outer of several linear, foliaceous bracts, the inner of lanceolate 
long, s slightly enlarged above, the anthers slightly appendaged at 
the base, the terminal appendages large; style branches very 
nea pelle akenes linear, sharply 10-nerve 
“Six ft. high; Santa Cruz, 5000 ft., Aug. 24, eae (No. 1460). 
The same collected by Pearce. 
Trixis diffusa sp. nov. 
Ferruginous-pubescent, the lower leaf-surfaces tomentose, the 
branchlets elongated, slender, striate, divaricate or widely spr read- 
acute, narrowed into a short, margined, petiole-like base, 
which is slightly auriculate-clasping; entire, thin, roughish-strigose 
