SYNGEMES. POLYGAM. .^QUALIS. 245 
SENECTO. Recept. naked. Down hair-like. Cal. 
with the scales dead at the ends^ 
TUSSiLAGO. Recept, nudum. Pappus simplex. 
Cal. simplex, polyphyllus, aqiiaJis, submembia- 
naceus, basi ventricosus. 
T USSILAGO. Recept. naked, Down hair-like. 
Cal. scales somewhat rnembranaceous, 
AN THEM IS. Recept, paleaceum. Pappus sub- 
marginatus. Cal, hemisphaencus, squamis subae- 
qualibus. Flosc. radii plures quam oblongi. 
‘ANTHEMIS. Recept. chuffy, Down none. Cal, 
hemispherical. 
ACHILLEA. Recept. paleaceum. Pappus nulkis. 
Cal. ovatus, imbricatus, inaequalis. FlCsc. laclii 
5 ad 10, obcordato-subrotundi. 
ACHILLEA. Recept. chaffy. Down none. Cal. 
oblongs Strap-shaped, about 
POLYG/VMIA FRUSTRAIvTEA. 
Flosculi disci hermaphroditici ; radii neutri, 
stenles. 
CENTAUR EA. Recept. sctosum. Pappus sim¬ 
plex. Cur. radii iut'undibuliformes, iongiores, 
irregu la? rs. 
CEN'rAUREA. Recept. bristly. Down hair-hke. 
Bloss. oj the circumference tubular. 
