I A S CU LA R P L A JV TS. 39 



Sub-Family Liguliflorae. 



Tribe I Cynaroideae. 



Style branches concreted. Corolla deeply 

 5-cleft. Receptacle bristly. 



62. Cnicus, L- 



JEqualis. Scales of the involucre oc- eriate, 

 imbricate, ending in a spine. Pappus decid- 

 uous, co-seriate; bristles plumose, connected 

 at their base into a ring. Filaments syngenetic. 



0. flowers red, white, yellow. 



63. Silybum, Vaill. 



iEqualis. Pappus x> -seriate; bristles rigid. 

 Filaments monadelphous. 



0. flowers purple. 



61 Carthamnus, Tourn. 



iEqualis. Pappus none. 

 0. flowers yellow. 



65. Centaurea, L- 



Frustranea. iEqualis. Involucre imbricate. 

 Ray-flowers funnel-shaped. Pappus of cc, scab- 

 rous, filiform, bristles. 



0. 11. flowers blue, red, white, yellow. 



Tribe II. Cichoriaceae. 

 All flowers ligulate. 



