Fig. 



Explanation of PL VI. 



Senecio monanthus DIELS. 



1. Plant 



2. A head with two flowers. 



3. A head with one flower. 



4. A flower. 



5. A flower, corolla expanded, showing a style and stamens. 



6. The same, setse partly taken off, showing style and stylophore. 



7. Apical portion of a style. 



8. A seta. 



9. A portion of the same. 



