Explanation of PI. VI. 



Senecio inonanthus DiELS. 



Fig. 1. Pknt. 



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, setaa partly taken oif, showing style and stylophore. 



7. Apical portion of a style. 



8. A setfi. 



9. A portion of the same. 



