224 LXXVHI. COMPOSITE. (J. D. Hooker.) 



TRIBE VI. Ant he mid ere. Heads heterogamous, rayed or disciform, or 

 rayless and homogamous. Invol.-bracts 2- oc-seriate, dry or with scarious tips. 

 Receptacle naked or paleaceous. Anther~cells not produced into tails. Style- 

 amis truncate. Pappus or a crown of short paleae. Leaves usually alternate. 

 Disk-fl. yellow, ray-jft. variously coloured. 



* Receptacle paleaceous. Heads usually rayed. 



Achenes margined. Heads corymbose .63. ACHILLEA. 



Achenes 4-5-angled or many-ribbed. Heads peduncled . . 64. ANTHBMIS. 



* Receptacle naked or with Jimbriate pits. 



Heads rayed, shortly peduncled. Achenes 5-angled . . . .65. AIXARDIA. 



Heads rayed, usually Ion g-ped uncled. Achenes 5-1 0-ribbed. 66. CHRYSANTHEMUM. 

 Heads rayed. Achenes ventrally 3-5-ribbed, dorsally co-ribbed 



or plane 67. MATRICARIA. 



Heads disciform, peJunded. Invol.-bracts 1-2-seriate . . .68. COTULA. 



Heads disciform, eubsessile. Invol.-bracts spreading in frt. . 69. CENTIPEDA. 

 Heads disciform, subsessile, invol. -bracts 3-4-seriate incurved 



in frt 70. SPHJEROMORPHEA. 



Heads disciform, corymbose. Invol. bracts co-seriate . . .71. TANACETUM. 



Heads small, disciform, racemose or panicled 72. ARTEMISIA. 



TRIBE VII. Senecionideae. Heads heterogamous, rayed or disciform. 

 Invol.-bracts usually 1-seriate and subequal, with a few short outer at their 

 base, rarely co -seriate. Anther-cells obtuse below or with 2 short points rarely 

 tailed. Style-arms of Q fl. truncate or appendaged. Pappus of fine hairs. 

 Leaves usually alternate. Disk-fl. yellow ; rays usually also yellow. 



Subtribe 1. TtrssiLAGiNEJS. Invol.-bracts 1-2-seriate, subequal, free nearly 

 to the base. Style-arms of fl. $ flattened or narrowly clavate, papillose, not 

 hairy all round (as in Eupatoriacece or Inuloidece). 



Invol.-bracts 1-seriate. Heads rayed, bracteolate, solitary . 73. TUSSILACO. 

 Invol.-bracts 2- or few-seriate. Heads rayed, drooping, 



usually solitary 74. CREMANTIIODIUM. 



Subtribe 2. EUSENECIOIHDE^. Invol.-bracts 1-2-seriate, free nearly to the 

 base, usually with a few smaller outer ones. Style-arms of fl. truncate or 

 obtuse, penicillate or with a hairy tip. 



* Invol.-bracts herbaceous, broad ', acuminate. Heads large, rayed, long- 

 peduncled. 

 Receptacle hemispheric. Herbs, leaves alternate . . . .75. DORONICUM. 



* Invol. bracts narrow, with a few much shorter outer ones (calyculate'), ex- 

 cept Emilia and some Senecios. 



Heads homogamous. Style-tips long, hairy . 76. GTNTTRA. 



Heads homogamous, ebracteolate 77. EMILIA. 



Heads homogamous. Stjle-tips ovate. Fleshy shrubs . . 78. NOTONIA. 

 Heads rayed or disciform, homogamous. Style-tips truncate 



or short or 0. Leaves radical or alternate 79. SENECIO. . 



Heads heterogamous. Fl. 9 sterile. Glabrous undershrubs . 80. OTHONNOPSIS. 



Subtribe 3. OTHONNE^J. Invol.-bracts 1-seriate, united to above the middle 

 into a cup. Fl. $ fertile ; style-arms truncate. 

 Heads large, solitary, erect, sessile or peduncled. Alpine herbs 81. WERNERIA. 



TRIBE VIII. Calendulaceae. Heads rayed. Invol.-bracts 1-2-seriate, 

 narrow, subequal. Receptacle naked. Anther-cells mucronate. Style-arms of 

 fl. truncate, or in sterile fl. undivided. Achenes usually large and thick and 

 deformed, without pappus. 



