o.-o COMPOSIT.E. L'nctlia. 



Ncwhcrnj, S'cltott, Cooper, kc. This iiuist be a showy plant, with its) (mostly coiyinbosi!) luuils 

 uilonied witli Inoail frnhli'ii yi'llow niys (less tliim iiu inch litnj,'), ami undoineath tlic green srales 

 of till) invdliicrii rriiij<cil with lung wliitu Iniirs. Tho original aimeiliu nanio is changuil on lucitunl 

 of tiio olil KiifcUit cuiifscciin. 



'1. £]. frutescens, (!iiiy. Slniilihy ladow, liispid-HciibrouH, loosnly imicli Iminclictl, 

 2 or iJ lecL lii)^li : 1mhih;Ii(«s luiiiiiiniUiig ill sinj^'lo luii^'-puduiiclod litwida : Iciivos 

 small (rarely an inch in length), obloiij< or ovale, sometimes sliylitly cordate, 

 entire or obscurely toothed, sliort-petioled : heads small : involucre scabrous-hispid 

 or canescent : rays G to 12, cuneate-oblong and 3-4-lobed, sometimes wanting: 

 akenes obovate and with a shallow notch, glabrous on the sides, very villous on the 

 margins and the rather short or une(iual (occasionally obsolete) i)ersistent awns. — 

 Troc. Am. Acad. viii. Go7. >Si>Hsia (Gercfu) frufesceus, Gray, Bot. Mex. JJound. 81). 



Gravelly ravines, &c., soutiieasteni borders of C'lilifornia and adjacent parts of Arizona, Nevada, 

 and Utah, Fremont, Enwnj, Acwbcrri/, kc. Cordilleras near Sun Felipe, Sullon Hayes. 



48. HELIANTHELLA, Ton. & Gray. 

 Head many-llowered, heterogamous, with rather numerous neutral rays and per- 

 fect disk-flowers. Involucre hemispherical, of loosely imbricated linear-lanceolate 

 scales ; tho outer mostly Ibliaceous and attomiato-ucuminate ; innermost shorter and 

 somewhat cluilly. lieceptacle Hat or convex: chall' eiubiacing the akenes. Disk- 

 corollas cylindruceous, D-loothetl j tho tooth i)uborulent-boartled. 8tylo-a]»})endug(!a 

 hirsute, mostly short and obtuse. Akenes flat (laterally much compressed), obovate 

 or oblong, with thin and acute or narrowly wing-marginod edges, and commonly 

 emarginato summit. Pappus an awn or chall'y tooth from each margin, and with 

 intermediate (often very small) thin chaffy or almost setiforin scales, both occasion- 

 ally almost obsolete. — Perennial (North American) herbs ; with both opposite and 

 alternate entire leaves, large and chieily solitary and long-peduncled terminal luiads 

 of yellow flowers, and the general habit of Ihliaiitlius or Wi/cthia. — Torr. ^ (iniy, 

 Fl. ii, 333 ; the second section including the tyjjical species ; with leaves lanceolate 

 or broader, and connnonly trij)le-ribbed near the middle. 



1. H. Californica, Oray. Minutely hirsute-pubescent : stems slender, one to 

 three feet high, occasionally bmnched : leaves spatulate-lanceolate, mostly oppcisite, 

 all tapering into petioles : head often foliaceous-bracted : rays seldom much if at all 

 longer than the involucre : chaff obtuse : akenes obovate, smooth and glabrous 

 throughout, narrowly margined, minutely ciliate when young only near the summit: 

 pappus of two short triangular or subulate chaffy teeth and a crown of minute 

 squamellae, nearly obsolete at maturity. — Pacif. Ii. Rep. iv. 103. 



Napa Valley, Bigelnw. Near Clark's, Mariposa County, A. Gray. Sierra Valley, Lcminon. 



H. LANCEOi.ATA, Torr. & Gray, wliich has akenes naked and with a pair of slender awns but 

 hardly any crown ; II. UNiFi.oitA, Torr. & <!niy, witli large head, akenes silky-villous on tho face 

 as well as margins, a jmir of stout awns, and a cons|)icuous crown of long and nariow sijuamellie 

 between them; and possiMy 11. I'AUitvr, (hay, with nuu'h smaller heads, narrower leaves, b\it 

 similar akenes, yet shorter or obsolete awns (at least its variety viultiaiu/is, II. inullicuulis, Eaton 

 in 13ot. King K.\p.), occurring north and east of California, nuiy be found near its bonk 



lers. 



49. HELIANTHUS, Linn. Sunfloweu. 



Head many-flowered, heterogamous, with neutral ray- and perfect disk-flowers. 



Involucre hemispherical or broader, of imbricated scales, more commonly with narrow 



herbaceous or foliaceous tips. Receptacle flat or convex, with chaff embracing the 



akenes of the disk-flowers. Rays mostly entire : disk-corollas cylindrical, 5 toothed. 



