Cichorieae 1 !■"> 



Bevera) series, dry, chartaceous or coriaceous. Recep- 

 tacle flat, naked, rarely pilose or fimbrillate. Corollas 

 5-lobed and somewhat bilabiate. Achenes narrowed at 

 apex. Pappus of copious capillary scabrous rigid or soft 

 bristles. 



1. P. microcephala (Iray. Tall, branching above, 1.5-2 m. 

 high, leafy; leaves oblong, the upper ovate, cordate-clasping, 

 8-12 cm. long, thin-coriaceous, minutely glandular-scabrous, 

 veiny, closely spinulose-denticulate; heads corymbose at the 

 summits of the paniculate branches, 12-15 mm. high; involucral 

 bracts very acute, coriaceous; flowers 10-15 in a bead, their 

 corollas 8-10 mm. long, rose-purple. 



Frequent on the dry interior plains and foothills. July-August. 



Tribe 12. CICHORIEAE. Chicory Tribe. 



Serbs with milky juice and alternate or basal leaves 

 and perfect flowers with ligulate corollas. Receptacle 

 naked or chaffy. 



Pappus paleaceous. 



Paleae not awned; flowers blue. 68. Cichoridm. 



Paleas with a slender awn or bristle. 



Paleas cleft at the apex, the bristle or awn proceeding from the cleft. 



70. Uropappus. 

 Paleaj not cleft at the apex. 69. Microseris. 



Pappus of rather rigid plumose bristles. 



Receptacle chaffy. 71. Hypochaehis. 



Receptacle naked. 



Achenes not beaked. 72. Ptiloria. 



Achenes, at least the inner, with a slender beak. 



Flowers white. 73. Nemoseris. 



Flowers purple; pappus brownish. 74. Tragopogon. 



Pappus of soft capillary scabrous bristles. 

 Achenes beakless. 



Achenes not flattened. 



Pappus deciduous, or 1-2 outer bristles persistent. 



75. Malacothrix. 

 Pappus persistent. 



Pappus white. 80. Crepis. 



Pappus tawny. 81. Hieracicm. 



Achenes flattened. 77. Sonchus. 



Achenes beaked. 



Achenes flattened. 78. Lactuca. 



Achenes not flattened. 79. Agoseris. 



