170 
BOTANY. 
Helianthella unifloka, T. & Gr. Pubescent with short appressed 
hairs, and somewhat hirsute along the stem ; leaves broadly lanceolate, 4-6 
long, 1-2' wide pointed, narrowed at the base, mostly opposite, the lower 
ones petioled, all 3-nerved above the base, heads solitary or with 1-2 from 
the upper axils, 2—4' broad ; involucre ciliate-liirsute, the scales lanceolate, 
foliaceous, the outer ones often exceeding even the rays ; chaff of the slightly 
convex receptacle closely conduplicate, 5-1" long, dehcately scarious, pubes- 
cent at the tip ; achenia 2-winged, ciliate and pubescent, crowned with 2 
long awns and al)out 4 intermediate lacerate squamellae. — Stems 2-3° high, 
usually single from a rather slender perennial caudex ; rays pale yellow ; disk 
an inch or more In-oad. Along the Rocky Mountains from Montana to Colo- 
rado and Arizona ; Utah, (Woodhouse.) Bear River Canon, Utah ; 8,000 
feet elevation; July. (604.) 
Helianthella multicaulis. Somewhat scabrous and pubescent with 
minute scattered appressed hairs ; stems li° high, many from a stout branch- 
ing woody base ; leaves opposite, oblong-lanceolate, 3-4' long, 7-10" wide, 
rather obtuse, nearly sfessile, 3-ncrved above the base, minutely resinous- 
dotted ; heads solitary, long-peduncled, 2-3' broad ; involucral scales lanceo- 
late, pubcrulcnt and ciliate, the outer ones sometimes exceeding the rays ; 
chaff of tlie receptacle conduphcate, 4" long, rigidly chartaceous, the tips 
scarcely pubescent ; achenia as in the last, but not so large. — Very near the 
last, but distinguished from it by the numerous stems rising from a stout 
uiidergrouiid woody caudex, which lasts many years, by the resin which fills 
the ultimate veinlets and appears on both surfaces of the leaves in exceed- 
ingly minute gi-auulcs, and by the smaller and much more rigid chaff of 
the receptacle. Wyeth's specimen of Nuttall's Heliantlius unijiorus has the 
smalkM- k-aves ol' this plant, ljut the chaff is large and scarious as in the 
plant last <lescril)ed. East Humboldt Mountains, and on the hills and peaks 
about Tarley's Park, Utah ; June, July. (605.) 
Heliomeims ^ multiflora, Nutt. Jour, Acad. Phil., n. s., 1. 171. 
StcniM'(nv from a woody root, 1-2° high, simple or branched ; leaves nar- 
' IIKLIOMKK'IS. Nt n.. I.e. Ifrads mauy-tlowcred, radiate ; rays neutral ; disk-tlowers numerous, 
lierf.M t : t!ie eorolla with a v, ly sliort imli. s,., „t i-ropcr tnbr, (?. f.. ainpliated very near the base,) 5- 
tnntlied. Iiivoliiere spivadiii.^ : (.Idon.u-liiirars. ah.s in ahout '2 rows. Ricej.tarle oblong-conical, covered 
with persistent laii< r(date eoiu av larinatc .•hatK jiart ly cnihraeiuu- the disk-tlowers and nearly their 
length. Stain. 'lis u itlihrnad ..vatr ai-pendi-vs and Ida. lvish anthers. Ihanehes of the style oblong- 
clavate. sli-litly lii^pid. Adi. nia ' uncate-i.l.long, eonipressed-qnadrangul.ir. entirely (h'stitute of pap- 
pus.-!', rtiinial West. ru X..rtli Ani. rieau h. rl.s orauffrute.scent plants, with nearly entire mostly opposite 
h aves .ni.l y. l!..\v Ihiw. rs, siualh^r tlum th.)se of most UduDtlhi. 
