342 COMPOSITAE 
Greene, Leaflets Bot. Obs. a: 27. 1910.) Tall, slender-stemmed plants 6-10 dm. high, widely paniculate-branched 
above; heads many, borne short, divaricate, pedunculate branchlets; lower stems loosely floccose, rather leafy 
below, the rng he: ne ay. lacking on the upper stem and inflorescence, these short-stipitate-glandular; lower 
leaves as in elgg vinifolia ook Sapna the upper much, reduced, bracteate; involucre small, turbinate, the 
phyllaries closely , squarrose, cartilaginous, marked at the tip with a well-defined, green or brownish 
green spot. Oc hal ti yi os "near ihe coast from Santa Barabara County, California, to coastal northern Lower 
California. Type locality: San Pedro, Los Angeles County. Collected by Hinds. 
Intermediate forms between t iserch — and other forms of the C. filaginifolia complex are not infrequently 
tound in cismontane aarlace Califor 
Corethrogyne poymrase var. a aN Canby (Bull. S. Calif. Acad. 26: 14. 1927), a local form seemingly 
related to the above C. filagin ge Lane var. Seas te found growing in the vicini ay Bed ghar — ae 
County. The. sl = pide Me ted are stout, have a many-flowered inflorescence, and h volucres which a 
6-8-seriate. 
Lorttiveg ine scabra Greene (Leaflets aie Obs. 2: 25. 1910), another local species gain by Hasse in 
Lael at Los Angeles, is sae temmed, leafy to the few-flowered inflorescence, and has green and scabrous 
erbage. 
Corethrogyne filaginifolia var. —— a H. M. Hall, Univ. Calif. Pub. Bot. 3:72. 1907. bpd "4 
Seeudtule —— Leaflets Bot. Obs. 26219105 .C, — osa Greene, loc. cit.; filaginifolia var. pinetorum I, M. 
Johnston, Bull. S. Calif. Acad. 18: a1. 1919; C. fill aginifolia var. brevicula Canby, op. cit. 26; 12. 1927; °C. " plagiad 
a2 hea rigida A. Gray, in part; C. filaginifotia bso g irl la Gray, of authors, not Torr. & Gray.) Stems 
A dm. high, stout or more der, r divaricately ascending, persistently leafy at and near the 
Se scent base a 0.5-3.5 ¢ = eats, png Hel ly white-tomentose; heads ase or yor so in the upper 
leaf. walle or few oT. in one er brite menos or guetta ie involucres 7-9 mm. high, turbinate; 
cat 
Upper 
ac 
Type locality: Oak ie Yucaipe Ranch, near Redlands, San Bernardino County. Intermediate forms bet 
this | taxon and C. filigintfolia var. virgata de> rn folia.va found in southern California. 
n the ic agin 
Th 
of C. filagintfolia var. tener ap shoneh. short in stature, aaa pone di ost pacity saan eo taller plants - the 
north, Consthrogyne filaginifolt SE gmig ses: perhaps an ecological form of higher peti oy has few heads 
and a more naked in Sdortieence as ad tes s from the southern Sierra aig tee to Fong tow r California border 
Corethrogyne filaginifolia var. senucaias (Abrams) H. M. Hall, Univ. Calif. Pub. Bot. 3: 71. 1907. “(Co 
sellrtane virgata var. bernardina Abrams, Fl. Los Ang. 401. Toee Erect plants 6-8 dm. high, with h heads 
rather few on metodo: branches; stem ee? white- tomentose eons sme for the glandular involucres 
and the upper part of the peduncles; ap 5-7 Pore dne the phyllaries squarrose. 
Consett on ay phe ns especially in the San Bereardinc Valley. Type locali ee tone, San Bernardino County. 
The densely white-tomentose stems and somewhat larger heads suggest Sisal with C. sessilis. 
91. ERIGERON* L. Sp. Pl. 863. 1753. 
Annual, biennial, or perennial herbs with alternate (or sometimes all basal) leaves. 
Heads solitary to numerous, hemispheric to turbinate, usually radiate, the few to usually 
more or less numerous pistillate fect: usually bearing evident and often narrow rays, 
: ~e : 
s na 
ing from herbaceous and equal to scarcely herbaceous and evidently imbricate, the loss of 
herbaceousness either emgplaes triple: bog their length or more prominent toward the tip. 
1 
Receptacle flat or a little c k Disk-flowers more or less numerous, generally 
yellow ; some species with pelos pistillate flowers between disk-flower the ray- 
flowers. Anthers entire or nearly so at the base. Style-branches flatten , with introrsely 
s 
marginal stigmatic lines and short (up to 0.5 mm.), externally minutely hair , lanceolate 
and acute to more often broadly triangular and obtuse appendages, or the appendage rarely 
(E. annuus) obsolete. Achenes 2- to man ny-nerved ; pappus of capillary and often fragile 
bristles, with or without a s Bork —_ series of minute bristles or scales. [Name e Greek, 
meaning early old man, or old man in the spring, presumably referring to the early flower- 
ing and fruiting of many of the ani s.] 
A genus of — 200 species, of North and South America, Euro i Asia, nearly all of temperate or 
boreal regions, eas in tropical America. Type species, niflorus L. 
Pistillate corollas very numerous, filiform, with very narrow, short, erect rays, these sometimes not exceeding the 
disk (inner pistillate corollas some times — bs VY. TRIMORPHAEA 
Pistillate corollas few to numerous (or absent), the tube generally einen rays adi devel- 
oped and spreading or sometimes eee a rahenae but not short, narrow, and e 
Pappus of the ray- and disk-flowers unlike, that of the disk-flowers composed by bristles and short outer 
setae, that of the rave labetts lacking the bristles; weedy, mostly annual plant 
TV. PHALACRO 
Pappus of the ray- and disk-flowers alike, of bristles, sometimes also with outer setae or scales; iy mostly 
—— nnial, a few species biennial or casually annual, seldom weedy except for E. philadelphicus and 
ergens. 
Internodes very and short; leaves linear or narrowly oblong, te a uniform from the base 
to aa the { ron Gf: the plant. the basal ones, if present, not markedly larg venacpet cauline ones; 
hyllaries markedly imbric TIL. PyYcNOPHYLLUM. 
Internodes an excessively numerous nor pond very short; leaves var reed shaped, “sometimes linear, 
but then the basal on usly lar; than the cauline ones; phyllar Aan or imbrica 
Achenes 4-8(10) cosas tae and foothill plants with the shyitaricy’ reeacatl? imbriate io the 
leaves si silvery-strigose. Il. Wyomin 
* Text contributed by Arthur John Cronquist. 
