226 FOUNDATIONS OF BOTANY 
Ill IV 
Fic. 24.— Bachelor’s Button. 
I, a tubular flower (magnified) ; anth, the united anthers ; II, fruit (magnified) ; 
Ill, fruit, vertical section (magnified); IV,a neutral ray-flower;1 V, ring 
of anthers. 
\ 
“A 
Fie. 25.— Flower-cluster of Yarrow (Achillea Millefolium), enlarged. 
A, head seen from above ; B, longitudinal section ; re, receptacle ; ch, chaff ; 
i, involucre; r, ray-flowers ; d, disk-flowers ; c, corolla; s, stigma. s 
1 This is not precisely homologous with the ray-flowers of Helianthus and most 
rayed Compositz, but is an enlarged and conspicuous tubular flower. 
