(99) 



3. H. Parryi Greene. Ila3^-flowers numer- 

 ous with short liguLio; raj-akenes turgid, very 

 gibbose, the gibbosity pushing the terminal 

 area to the inner angle so that the area appears 

 lateral, receptacle convex; bracts of involucre 

 pungent; paleae of receptacle not pungent; 

 upper leaves short, acerose, lower pinnatifid; 

 flowers yellow. — 0. St. Helena. Summer. 



4. H. PUNGENS Torr. & Gray. Ray -flowers 

 numerous with short ligulae; ray-akenes turgid, 

 very gibbose, the gibbosity pushing the ter- 

 minal area to the inner angle so that the area 

 appears lateral; receptacle convex; upper 

 leaves and bracts of the involucre pungent; 

 paleae of the receptacle pungent also; lower 

 leaves frequently bipinnatifid; flowers yellow. 

 0. Common. Summer. 



5. H. coRYMBOSA Torr. & Gray. Ray -flow- 

 ers cuneate, more than 10. Ray-akenes turgid, 

 very gibbose, the gibbosity pushing the termi- 

 nal area to the inner angle so that the area 

 appears lateral; akenes 4-5-nerved; receptacle 

 flat, naked on the disc, but the disc flowers 

 separated from the ray-flowers by a cup, formed 

 by connate paleae; ovary of the disc-flowers not 

 developed; flowers yellow. — 0. Common. 

 Summer. 



6. H. ANGU STIFOLIA DC. Ray-flowers 

 cuneate, more than 10; ray-akenes turgid, very 



