4 Compositae, 
Xx» Achenia eireumeirea. subregulariter eostata, 
C) Tubus eorollarum  disei alato-compressus; achenia ealva vel 
corona seariosu munita. 
27. Leucanthemum "l'ourn, 
C3C) "Tubus eorollarum disei teres; achenia eorona seariosa munita. 
Capitula: radiata, radio longo; achenia eglandulosa, corona 
scariosa varia munita. 
28. Pyrethrum Gaertn, 
Capitula diseoiden vel radio abbreviato munita; achenia pel- 
lucide-glandulosa, margine membranaceo vel corona abbreviata 
munita. 
29. Tanacetum. 
f. Achenia difformia, radii 2—93 alata, disei exalata. 
30. Chrysanthemum L. 
b. Capitula radiata vel diseoidea; styli erura non in eonum producta, achenia 
leretia, eeostata, obsolete striata, pappo eoronaeformi brevi fimbriato-la- 
eero superata, 
31. Ammanthus Bois, et Heldr. 
e. Capitula diseoidea; styli erura saepius supra penieillum in conum produeta ; 
achenia eompressa, ecostata, calva. 
32, Artemisia L. 
0. Tribus, Senectoneae Cass. in diet, se, nat, N X. p. 3977. — Capitula hetero- 
suma, rarius homogama; receptaculum nudum; antherae eeaudatae, basi breviter 
sagittatae ; styli erura truneata, penicillata; achenia eylindriea, costata, omnia vel 
saltem. disei pappo piloso coronata. 
a. Anthodium explanatum, phyllis 2—3 serialibus; achenia radii ealva, disei 
pappo piloso munita, 
33. Doronicum L. 
b. Anthodium eylindrieum vel eonieum, phyllis 1 serialibus; achenia omnia 
pappo piloso munita. 
34. Senecio L. 
7. "Tribus, C'alenduleae Less, syn. p. 89, — Cupitula heterogama; recepta- 
eulum nudum; autherae basi sagittatae; styli erura linearia, compressa, crassa; 
achenia ealva, in eodem capitulo saepius heteromorpha. 
35. Calendula L. 
2. Subdivisio, Cynarocephalae Juss. gen. p. 171. — Stylus florum herma- 
phroditorum superne nodoso-inerassatus, ad nodum saepe penieillatus et artieulatus, 
eruribus liberis vel eoneretis, Corollae omnes tubulosae, rarius marginales ampliatae, 
bilabiatae vel ligulatae; receptaeulum saepius dense setosum vel paleis onustum ; 
antherae basi sagittatae. 
8. Tribus. Jchinopsideae Less. in Linnaea VI, p. 88. — Capitula uniflora, 
in receptaeulo communi globoso in glomerulum globosum congesta; achenia sericeo- 
villosa, areola basi receta; pappus coronaeformis, 
36. Echinops L. 
9. "Tribus. (Carlineae Less. syn. p. 11. — Capitula pluriflora, disereta vel 
subaggregata; aehenia serieea vel villosa (ef. Staehelina), areola basilari reeta, rarius 
subobliqua; pappus uniserialis, paleaceus vel setaceus, setis basi in faseieulos plures 
rarius in annulum concretis, 
à. Herbae. 
«. Pappi paleae aristato-aeuminatae. | 
