CATALOGUE. 1G9 
site and alternate, petioled, 12-18" long, oblong-linear or elliptical, entire, 
3-nerved at the base ; heads numerous on long and very slender peduncles, 
very small, scarcely 1' broad ; involucre of 10-12 ovate-acuminate fohaceous 
scales, half as long as the 5-8 Ijroad but very short rays ; chaff of the recepta- 
cle tricuspidate, with the middle point becoming a stout awn ; achenia glab- 
rous or hirsute ; scales of the pappus ovate-lanceolate. — California, (Bolan- 
der !) Carson Desert, near Soda Lake ; 4,000 feet elevation ; July. (GOO.) 
Helianthus lenticularis, Douglas. Annual, scabrous and even his- 
pid ; stems purple-spotted, stout, 3-8° high, branching ; leaves alternate, 
ovate, acuminate, coarsely serrate, long, 2-4' broad, 3-nervcd at the l)ase 
and suddenly narrowed into a petiole nearly as long as the leaf ; uppermost 
leaves more lanceolate ; heads mostly panicled, peduncled, 2J-4' broad ; 
involucre spreading ; the numerous ovate ciliate abruptly acnminale scales 
imbricated in about 3 rows, outer ones shortest ; rays 20-24, large ; chaff 
of the flat receptacle nearly as long as the purplish disk-flowers, concave, 
carinate, tricuspidate, the middle point much the strongest and dark-colored ; 
achenia finely appressed-pubescent ; papjnis of two lanceolate chaffy awns. — 
Saskatchewan to Oregon, California, and Arizona, and eastward from the 
Upper Missouri to Texas and New Mexico. Common in the valleys through- 
out Nevada, and in Salt Lake Valley ; 4-6,000 feet elevation ; July-Octo- 
ber. (601.) 
Heliakthus Nutallii, T. & Gr. Perennial ; stem smooth, 3-4^ high ; 
leaves opposite, or all but tlic lower ones alternate, short-petioled, the upper 
sessile, all narrow linear-lanceolate, 4-6' long, 3-6" or even 12" wide, entire 
or distantly serrate, 3-nervcd near the base, scabrous on both sides; heads 
1-7, about 2' broad; involucre of lanceolate-subulate scales, hirsute toward 
the base; rays 20-24, rather narrow, deep-yellow ; achenia glabrous ; pap- 
pus of 2 lanceolate chaffy scales. — Plains of the Snake River, (Nuttall ;) 
Rocky Mountains of Southern Idaho, (Burke.) Union ville, Upper Hum- 
boldt, and Ruby Valleys ; 4-6,000 feet elevation ; August-October. (602.) 
Helianthus gigantkus, L. Saskatchewan and Canada to Georgia. 
Var. Utahensls. Stem slightly hirsute, at length smooth; leaves uurrower 
and thinner than in II. glganteu.s^ minutely scabrous above, appressed-pubes- 
cent beneath, all 1)ut the upj)ermost opposite, narrowed into a short winged 
petiole ; heads, &c., as in //. giganteus—WrXeyii Park, Utah ; 6,000 feet 
elevation; July. (603.) 
22 
