38 VA SGULAE PLAN TS. 



58. Senecio, L 



Superflua. iEqualis. Involucre 1-seriate, 

 bracteolate. Beceptacle naked. Pappus capil- 

 lary. 



. li . ] j . flowers yellow. 



59. Arnica, L. 



Snperflua. Ray flowers elongate, with distinct 

 but sterile anthers. Involucre 2-seriate. Pap- 

 pus capillary. 



21. flowers yellow. 



Tribe viii. Eupatoriaceae. 



Style branches club-shaped. iEqualis. 



60. BulDOStylis, DC. {Brickellia,K\\.) 



Scales of the involucre imbricate, 2 — 3-seriate. 

 Eeceptacle flat, naked. Margin of the tubular 

 corolla, minutely 5-dentate. Style bulbous at 

 base. Akenes 10-striate; pappus 1-seriate, 

 bristly, scabrous. 



2£. *>'. flowers pink or white; leaves oppo- 

 site. 



61. Adenostyles, 0««ss 



Scales of the involucre 1-seriate, few. Recep- 

 tacle flat, naked. Margin of the corolla 5-lobed, 

 campanulate. Akenes 10-striate; pappus oo- 

 seriate, silky 



li. flowers pale. 



