CONTRIBUTIONS TO WESTERN BOTANY 79 
Palnfoxia linearis var gigantea. nvar. Sand dunes 
west of Yuma Sept. 26 i4st, Planta 3 3-6 ft. high, erect, - single. 
Leaves 4 inches long by ¢ inch wide, linear-lanceolate and acu- 
minate, flat, shining on upper side, eads I,‘ inches jong, large, 
“with ue almost wiolly eae and t the Edy with the 
r sci er vila Jepson, A ‘lender, erect and. glabrous annua), 
chotomously branched above into an open and open fees 
nicie. eaves linear, 2-3 inches long by 2-3 ide, acute, 
entire, rigid, sessile. gr: Peis reduced xbove er often with a sin- 
gle tuck: shaped gland at tip. Whole plant perfectly smooth and 
with reddish branches. Heads solitary on capillary and bracte 
pedicels, oval, about } inch long, bright-green. Fertile akenes 
3-5, em braced by the boat-shaped, green and smooth scale whic h 
has a long and cobwebby fringe of white hairs on the inner margin, 
the akenes being obovate, obcom pressed and a rounded 
and epappose, black and smooth, Flower with 3 rigid, yellow rays, 
3-6 mm, long. Disk flowers white or pinkish, epappose, the ray 
flowers seem imbricated. Plants 2-3 ft. high. Pitt river bridge, 
Cal. 
Galinsoga Ruiz and Pav. Whether there is more than the 
one species here I do not know. The ray flovers are white and ve ry 
short; the pappus is of several oblong scales variously lacerate and 
pointed, My species, ped Sa exaristate, is epappose; but 
otherwise as in G, parviflora and has linear or very narrow leaves 
Cosmos sulphurens Cay No. 27752, La Barranea, Guadala- 
jara Nov, 16 1930. Erect plants, branching above and ending in 
cingle large al pedunculate hoads,on peduncles often a foot long 
Plants almost smooth. Leaves lanceolate to ovate, bipinnate inte 
narrowly oblong segments which are acute and acerose. Vletioles 
beset with long, tapering, flat hairs, with miiribs nate scattered 
and spreading t and short ones, HHeade in flower 1 i long and 
in fruit 2 inches long, with conspicuous orange rays , ineh long, 
Flowers about 15. Akenes about 25 mm, long, sea fusiform, 
tupering below the middle into a filiform beak ne 15 mm. 
~ long which is scabrous, the body of akene a icued with the 
sub- eels bases of nascent hairs, the rudimentary hairs of beak 
but hairs of the 2 bk and subulate awns se 
his ecies is close to Bidens Bige- 
The heads 
