180 45. COMPOSITE. 



d. Fr. with a transverse "basal scar. Pappus in many roWb', 

 Filaments monadelphous, glabrous. Anth. scarcely tailed. 



32. SiLYBDM. Phyll. leaflike at tlie base, narrowed into* 

 a long spreading spinous point. Receptacle scaly. Fr. 

 compressed, its terminal scar surrounded ht/ a papillose ring. 

 Pappus hair- or scale-like, united inta a ring at the base^ 

 deciduous. 



Suborder IH. OICHORIACE^ or LIGtJLIFLOE^. 



Flowers aU ligulate and perfect. — Juice nulky, 



* Pappus Q. Meceptacle withotit scales, 



33. Lapsana. Heads 8 — 12-flowered. Phyll. in 1 row' 

 erect, with 4 — 5 short bracts at their base. Fr. com- 

 pressed, striate, deciduous, not enveloped in the phyllariea;. 



** Pappus like a croum, or of manij entire broad scales. Recep- 

 tacle vnthout scales. 



34. Aenosbbis. Heads many-flowered. Phyll. in 1 row^ 

 about 12, keeled, linear-lanceolate, at length converging, a 

 few small bracts at their base. Fr. angular, crowned with 

 a short elevated entire margin. 



35. CiCHOBiUM. Heads many -flowered. Phyll. in 2 rows ; 

 outer of about 5, lax, shortish ; inner of 8 — 10, longer, con- 

 verging, at length rejlexed. Receptacle sometimes slightly 

 pilose. Fr. obovate, compressed striate. Pappus of 2 rows 

 of minute erect chaify scales. 



*•* Pappus feathery. Seceptacle scaly. 



36. Hypochceris. Heads many-flowered. Phyll. oblong, 

 imbricate. Fr. glabrous, muricate, often beaked. Pappus, 

 in 2 rows, outer short and setaceous, inner long and fea- 

 thery ; or in 1 row and feathery. 



**** Pappus featheiy , or on the exterior fruit scaly. Receptacle 

 vnthout scales. 



37. Thrincia. Inv. oblong. Phyll. in 1 row, with a few 

 additional at the base. TV. beaked. Pappus in 2 rows ; 

 outer setaceous, deciduous ; inner longer, feathery, dilated 

 at the base. Marginal row of fruits enveloped in the 

 phyllaries, scarcely beaked, and with a short crowti-Uke 

 pappus. 



38. Leontodon. Inv. subimbricate ; exterior phyll. much 



