








Contributions from the Gray Herbarium 
YY. Involucre not canescently hispid- 
pilose, ZZ. 
ZZ. Stem decumbent; phyllaries stri- 
( ot i p! rely eiliates 
ZZ. 8 l 08. Y. Sutera 
. Stems most 4 
usually Gliate; Lanlis a 
sev’ , 
AAA. Leaves — y venose 
AAA. Leaves rarely venose be 
neath; heads 1-10, BBB. 
BBB. Leaves ovate, the lower not 
reduced; involucre 6- 
G. Leaves linear to lanceolate or oblong, a. 
a. Leaves linear; heads 1-4; involucre 2-seriate, subequal. 
Ser. T' 
a. Leaves lanceolate to or when linear not 
by a 2-seriate i 
b ee ee eee rere 
Pappus present; leaves laciniate....... 
~ = presen, leoves gation to woerely, ng 
d. Leaves y conescent-sirigillose beneath. 
Heads pe eseaonveaeveeunv® . ° 
Heads eee eee eovneneanwve* a7. bel 
d. Leaves green ee e: 
“2 or slightly loose at apex, 
