164 LXX. COMPOS ITiE. 



* Komorjamons ; all the flowers perfect, 5- 

 toothed. 

 Pappus of several, feathery bristles. 



Heads large, showy, solitary or corymbose. 79. IIelipteeum. 

 Heads small, sessile, in tufts or spikes. 

 Pappus plumes eonercte at base, feathered 



ill the upper half only 87. Eltteopappus. 



Pappus plumes separate, feathei'sd 



throughout 88. Pterothetx. 



Pappus of several, simple or serrate bristles. 

 Achenes glabrous, smooth or granulated. 



Pappus 2-seriate 77. Leontonyx. 



Pappus 1-seriate. 



Achenes sessile, granulated. Leaves 

 not pungent. 

 Pappus rough or serrated .... 78. Helichetsum. 

 Pappus beaded near the tip . . .82. Eeiosph^ea. 

 Ovaries stipitate, smooth. Leaves 



pungent, often spirally twisted . . 84. Metalasia. 

 Achenes hairy or woolly. 



Achenes beakless 85. Lachnospeemum. 



Achenes with a glabrous, thick beak . . 86. PAcnTEnYNCUS. 

 Pappus of 5, ovate, short, toothed scales . 104. Oligodoea. 

 ** Heterogamoiis ; disk-flowers perfect ; margi- 

 nal filiform, female. 

 Pappus of all the flowers amply feathered . 83. Lastopogon. 

 Pappus bristle-shaped. 



Marginal flowers without pappus . . .81. Amphidoxa. 

 Marginal flowers with pappus, as the disk- 

 flowers. 

 Eeceptacles bearing palese among the 



flowers 76. Khynea. 



Receptacles nude or fimbrilliferous. 



Pappus 2-seriate 77. Leontonyx. 



Pappus 1-seriate. 



Female flowers few 78. Heliciieysum. 



Female flowers very many, in several 



rows • . . 80. Gnaphalium. 



*** Heteromonoecious ; disk-flowers male; mar- 

 ginal female, filiform. 

 Heads large, solitary ; involucre radiating, 



lusti'ous 95. Ph.enocoma. 



Heads small, corymbose ; involucre radiating. 



Receptacles very woolly, without palea? . 97. Anaxeton. 

 Receptacles nude in centre, with marginal 



palea3 9G. Petalacte. 



Heads small, in tufts or spikes ; involucre not 



radiating 94. Teichogyne. 



3. Heads several-flowered, radiate ; rays ligulate. 

 Ray-flowers white or purple, not yellow. 

 Pappus of several, feathered bristles. 

 Heads 2-flowered ; bristles feathered 



above 91. Dispaeago. 



Heads 6-15-flowered ; bristles feathered 



throughout 89. Amphiglossa. 



