ALASSIO AND ITS FLORA 
51 
adhesive. The secondary segments of the 
leaves have 2-34 small divisions. Average 
length of the leaf 7 centim., but it some- 
times reaches 10 centim. 
Flowers in compound corymb, 10-20 and 
more for each principal peduncle; lower 
sprays reaching with their flowers nearly 
always to the level of the upper ones, so 
that it might be said that all the compound 
corymbs of each principal peduncle form 
a large single corymb for each stem. In- 
volucrum cylindrical with numerous sharp 
teeth in the edge, resulting (the involu- 
crum) from the union of very numerous 
acuminated sepals. Corolla golden-yellow, 
tubular, 5-tooth:3d in the small flowers of 
the centre, with ovate or obovate and not 
very long Unguetta in those of the peri- 
phery. A circular pappus of very fine hairs 
at half a millimetre from the receptacle 
surrounds thj corolla of each small flower. 
Akenia glabrous. 
Senecio is derived from senex, either 
from the form of the receptacle which re- 
sembles a bald head when the flowers are 
taken from it, or from the white hairs 
