8 Disc-flowers and receptacle NAKA 
qG /2achenes cylindric: al, loncitudinalily ribbed af. Chrysanthemum 
nd 
4 4b way Llowers yellow 
G Ray-flowers and achenes enclosed vy 
involucral bracts; fiowers 
the heads slenderly ovoid 
@ Yeads ¢landular with stalked glands 30, 2018 
@ leads hirsute, not ¢landular 3 Lacophylla 
' 
{p ay-flowers and achenes not enclosed by tne 
yo involucral bracts 
8 Pappus consisting of « ricid retrorsely barbed 
awus at the anex of the strongly flatiened 
achenes, these thererore clinging tenaciously 
\to clothing 09. Bidens 
—- 
2 Paprus consisting of + minute teeth at the apex 
_ fof vne acnene; pracits of two dissimilar oe 
LA 1Z\ the outer green, the inner membranous but fir 
Cage ‘epic val or ovate, brown or orange in color yaa. Coreopsis 
Q Fappus not as descvibea, cousisting eitner of 
q sof% uair-like bristles equal in diameter 
throucnout or of several membranous scales which 
t 
i : , 
he may taper into a memoranous awn, these soinetimes ‘ 
\deciduous ou wantin: 
‘ 
J@ 5a,laprus ¢ consistins of isembranous sometimes wned 
pe or wanting, not of nair- — bristles 
M4 receptacle mostly with chariry bract ; 
/2 6a.dise flowers each subtended by an erect chafiy 
le °F avil-like bract 
dy mae Mv ur ted nerbs W — tlower ated pearing: ; stems put 
La tle lon: ver nan the Gut G OL } asal 
}( (leaves which are commonly 0-40 cm. lon 
a Wl AO) re 
ermine ee ep Se pe ae anette ans, ae Aisa ee ae ee eae eee 
1& Tear Qs Sslive » with SOL OG. wOUw, weLtlola 3. BaLlsamorrniza 
/~ Leaves [reen an sticky, lanceolate a4, icrethi 
/4 neLlos 1%tn erect tear S$ tel L@aves 
/G rarely <Q Cie ion 
