EXPLANATION OF TAB. 1 
Figs. 1-7. Aphanostephus (Pappophanus) Kidderi Blake. 
Fig. 1. Portion of plant, 34 nat. size. Fig. 2. Head, the rays mostly re- 
moved, X2. Fig. 3. Ray-flower, X5. Fig. 4. Disk-corolla, 5; a, enlarged 
apex of tooth to show papillose crest. Fig. 5. Disk-achene, 10; a, cross- 
section; b, awn of pappus; c¢, hairs of achene, enlarged. Fig. 6. Style-tip, 
X10; a, apex of style-branch, enlarged. Fig. 7. Androecium, X10. 
Figs. 8-14. Oxycarpha suaedaefolia Blake. 
ee 8. Plant, } nat. size. Fig. 9. Vertical section of head, X2. Fig. 10. 
Disk-corolla, X5. Fig. 11. Pale, X5. Fig. 12. Achene, 5; a, cross-section. 
Fig. 13. Style-tip, 10; a, apex of style-branch, enlarged. Fig. 14. Androe- 
cium, X10. 
