DICOTYLEDONOUS PLANTS 



163 



Tribe 6. HELENIOI'DE^;. Similar to Helianthoidece, but 

 there are no chaffy scales on the receptacle. 



Tribe 7. ANTHEMOI'DE^E. Similar to Helianthoidece, but 

 the involucre consists of papery bracts in regular rows, the 

 pappus is a short crown or wanting, and the receptacle rarely 

 has chaffy scales mixed with the flowers. 



\ 



I 



FIG. 5. 



FIG. 6. 



FIG. 7. 



FIG. 8. 



FIG. 9. 



FIG. 10. 



FIG. 11. 



Fig 



. 5. Anthers with tails (c, tails). Fig. 6. Anthers without tails (<l, base of 

 anthers). Fig. 7. Style and stigma of Tribe 9. Figs. 8, 9. Flat style branches 

 tipped with an appendage (a, appendages). Fig. 10. Style branches of 7V// 

 3. Fig. 11. Truncate style branches. e, the part of the anthers containing 

 the pollen; b, the stigmatic part of the style. 



Tribe 8. SENECIONI'DE.E. Similar to Helianthoidece, but 

 the pappus is abundant and capillary and the receptacle is 

 destitute of chaffy scales. The bracts of the involucre are 

 generally in a single series. 



