LXX. COMPOSITiE. 165 



Pappus of rough bristles, or of alternate 

 bristles and short scales. 

 Involucral scales in few rows. (Densely- 

 tufted herb.) 90. BuYOMORPnA. 



Involucral scales in many rows, bristle- 

 pointed 98. Athrixia. 



Pappus of several, very short scales . . 105. Osmites. 



Pappus ; ray neuter 106. Osmitopsis. 



Ray-flowers yellow, often coppery beneath. 

 Keceptaclcs nude. Pappus of many rigid 



bristles 99. Antitheixia. 



Receptacles nude. Pappus, in the ray, of 

 short scales ; in the disk, of feathered 



bristles 100. Leyssera. 



Receptacles honeycombed or fimbrillife- 

 roiis ; pappus of several, short, free or 



connate scales 102. Nestlera. 



Recejitacles bearing paleae between the 

 flowers. 

 Pappus uniform, of separate or connate 

 scales, or crown-like, entire or cre- 



nate 103. Relhania. 



Pappus of disk-flowers double, the outer 

 of short, broad scales ; the inner of 2 

 long bristles 101. Rosenia. 



Subtribe 5. Senecione^. Leaves alternate. Heads radiate or discoid. 

 Receptacles nude. Anthers without tails, blunt at base. Pappus of many 

 or few, slender, hair-like bristles, the marginal flowei's sometimes without 

 pappus. Involucre very usually 1-seriate (often bracteolate at base) . (Gen. 

 107-119.) 



1. Heads discoid. 



Homogamous ; all the flowers perfect, 5- 

 toothed. 

 Involucral scales 5, winged or crested at 



back 111. LopnoL5<:NA. 



Involucral scales neither winged nor crested. 



Style-branches truncate 117. Senecio. 



Style-bi-anches minutely cone-topped. 



Achenes flattened or winged . . . .110. Cineraria. 

 Achenes not flattened. 



Pappus in several rows . . . .113. Kleinia. 



Pappus 1-seriate 112. Cacalia. 



Heterogamous or Heteromoncecious ; the mar- 

 ginal flowers filiform, female. 

 Shrubby or perennial. Pappus copious. 



Disk-flowers fertile. Leaves fleshy, thick 113. Kleinia. 

 Disk-flowers sterile. Leaves expanded, 



glabrous 114. DORIA. 



Annual. Pappus very scanty 107. Stilpnogyne. 



2. Heads radiate. 



Achenes flattened or winged 110. Cineraria. 



Achenes terete or angidar. 



Pappus copious, in many rows. 

 Disk-flowers fertile. 



