122 FLORA OF SOUTH AUSTRALIA. 
Rutidosis. 
Erect, cottony, perennial; leaves linear, sessile; pappus- 
scales 5 to 7; flowers ven aie heads on ‘terminal 
peduncles 
Minute diffuse annual ; endait in a ‘dig cciinad cyme 
Pluchea, 
Heads cylindrical, singly terminal ; flowers 4 or 5 in 
each head, phyllaries blunt. Erect woolly shrub, 
leaves small - 
Heads ovoid in corymbose vhustola heer eee; 
inner phyllaries acute, rigid. Glandular- pubescent 
perennial ats 
Heads broadly ovoid in anal cotanitet eee asl: 
inner phyllaries narrow long-pointed. Glabrous 
perennial = ae is 
Pterigeron. 
Heads large, hemispheric ; leaves obovate, narrowed at 
the base, to oblong-cuneate, toothed. Ray ‘ote 
ligulate. Erect, scabrous 
Heads ovoid ; leaves oblong, narrowed a the amt 
Heads narrow-ovoid ; leaves linear, stalked 
Heads ovate-companulate; leaves obovate, crenate- 
toothed ..,. 
Podosperma. 
Dwarf ascending ; leaves linear; involucre cylindrical, 
at length conical, 1 to 2 inches long; achenes hairy 
Ixiolaena. 
I. Involucres hemispheric, phyllaries very nar- 
row ; pappus nearly as long as corolla. 
Leaves lanceolate, acute, narrow at the base ; heads on 
long stalks w ith distant bracts ; phyllaries eae 
lar-hairy ; pappus bristles 8 to er tees 
Leaves oblong-spathulate, stalked ; phdan dla vilther 
short with small bracts ; phyllaries scabrous ; 
pappus-bristles 20 to 30 o. 
1. Involucre companulate, pappus as long as 
corolla. 
Leaves lanceolate, stem-clasping ; phyllaries woolly ... 
Athrixia. 
Dwarf pubescent annual; heads singly terminating 
long stalks 
helichrysoides 
Pumilio 
conocephala 
tetranthera 
Eyrea 
liatroides 
microglossus 
adscendens 
dentatifolius 
angustifolium 
leptolepis 
supina 
tomentosa 
tenella 
