164 LXX. COMPOSITA. 
* Homogamous; all the flowers perfect, 5- 
toothed. 
Pappus of several, feathery bristles. 
Heads large, showy, solitary or corymbose. 79. 
Heads small, sessile, in tufts or spikes. 
Pappus plumes concrete at base, feathered 
in the upper half only . . . . . 87. 
Pappus plumes eee feathered 
throughout 
Pappus of several, simple ¢ or serrate bristles. 
Achenes clabrous, smooth or granulated. 
Pappus Doearinties eatin i. 08% otha, LMR 
Pappus 1-seriate. 
Achenes sessile, granulated. Leaves 
not pungent. 
Pappus rough or serrated. . . . 78. 
Pappus beaded near the tip . . . 82. 
Ovaries stipitate, smooth. Leaves 
pungent, often spirally twisted . . 84. 
Achenes hairy or woolly. 
Achenes beakless . . . 5 Oho. 
Achenes with a glabrous, thick beak . . 86. 
Pappus of 5, ovate, short, toothed scales. 104. 
** Heterogamous ; disk-flowers perfect ; margi- 
nal filiform, female. 
Pappus of all the flowers amply feathered . 83. 
Pappus bristle-shaped. 
Marginal flowers without pappus . . . 81. 
Marginal flowers with pappus, as the disk- 
flowers. 
Receptacles pene paleze among the 
flowers. . #V0763 
Receptacles nude or fimbrilliferous. 
Pappus\2-seriatey 29 cs §. 
Pappus 1-seriate. 
Female flowers few. . . 5 fish 
Female flowers very many, in sever: eral 
TOWS .. « . 80. 
*EK Heteromonecious ; disks owen malo mar- 
ginal female, filiform. 
Heads large, solitary ; involucre radiating, 
lustrous . . 
Heads small ,corymbose ; ; involuere radiating. 
Receptacles very woolly, without palee . 97. 
Receptacles nude in centre, with marginal 
pales . : 
Heads small, in tufts or spikes ; involuere not 
radiating. . . . 94, 
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. 
Heads 6-15- Apwerdl: Dusiutles foatean ed 
throughout . . . 289: 
HELIPTERUM. 
ELYTROPAPPUS. . 
88. PTEROTHRIX. 
LEONTONYX. 
HELICHRYSUM. 
ERIOSPHZERA. 
METALASIA. 
LACHNOSPERMUM, 
PACHYRHYNCUS. 
OLIGODORA. 
LASIOPOGON. 
AMPHIDOXA. 
RHYNEA. 
LEONTONYX. 
HELICHRYSUM, 
GNAPHALIUM. 
95. PH#NOCOMA. 
ANAXETON, 
96. PETALACTE. 
TRICHOGYNE. | 
DISPARAGO. 
AMPHIGLOSSA. 
