168 45. coMPOSiTiE. 



* Pappus 0. Receptacle without scales. 



32. Lapsana. Heads 8 — 12-flowered. Phyll. in 1 row, 

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

 striated, deciduous, not enveloped in the phyllaries. 



** Pappus like a crown or of many entire broad scales. Recep- 

 tacle without scales. 



33. Arnoseris. 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. 



34. CiCHORiuM. Heads many-flowered. Phyll. in 2 rows ; 

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

 verging, at length refiexed. Receptacle sometimes slightly 

 pilose. Fr. obovate compressed striated. Pappus of 2 rows 

 of minute erect chafly scales. 



*** Pappus feathery. Receptacle scaly. 



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

 imbricated. Fr. glabrous, muricated, often beaked. Pappus 

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

 thery ; or in 1 row and feathery. 



**** Pappus feathery , or on the exterior fruits scaly. Receptacle 

 without scales. 



36. Thrincia. Involucre oblong. Phyll. in 1 row, with a 

 few additional at the base. Receptacle punctured. Fr. 

 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 crownlike fimbriated pappus. 



37. Apargia. Involucre subimbricated, exterior phyll. much 

 smaller in 1 — 3 rows. Receptacle punctured. JPr. uniform, 

 slightly beaked. Pappus of all thefr. in 2 rows; outer se- 

 taceous, persistent ; inner longer, feathery, dilated at the 

 base ; or in 1 row feathery. 



38. Tragopogon. Involucre simple, of 8 — 10 phyll. con- 

 nected at the base. Receptacle punctured. Fr. longitudi- 

 nally striated, with a long beak ; areola lateral. Pappus in 

 many rows, feathery, interwoven in the ray. 



39. PiCRis. Phyll. in 1 row, equal, mf A unequal linear often 

 spreading ones at the base. Receptacle dotted. Pr. terete, 



