1 CLASS fcVIII. 



PAQS. 



XM r raw w — Fertile and sterile flowers occupying different heads on the same 

 plant 1 ; the fertile clustered below; the sterile in short spikes or racemes 

 above. — Coane j'lants. IW 



* * * * * Heads radiate or rarely discoid ; the disk flowers 

 always perfect and»fertile ; receptacle chaffy ; anthers black- 

 ish, without tails at the base. — Leaves mostly opposite. 



* R vjs conspieuom, mostly large. 



HzUOPOg, p. 179. RCMECTUA, p. 179. LEPACHY3, p. ISO. HzLIAiTTHCS, p. 1*1 



**Rayt yellow, cr orange-colored, rarely red, white or purple, or sometime* 

 wanting. 



OOBMMBj p. 1838. ZixxiA, p. 183. Tageies, p., 1S4. Actisoxeris, p. 184 

 Rosin, p. 185. Verbesixa, p. 136. 



f Pappus composed of several distinct chaffy sates. 



iisLF.viLM — Leaves decurrent on the angled stems.— Heads termina:i;t$ the 

 branches. 



* * * Hays white. Leaves much dis?e 



Marcta. fl. 187. Axthkmis, p. 137. Achillea, p. 183. VsBOtamuxnant, i 



Ftreth&cm, p. 189. 



***** Orn &t with white, yellow, red and purple ray?. Leaves 



Chrtsanthemcm, peg? 189. 



**** * Heads mostly discoid, fertile or heterogamous; fipwers 



1 Leaves BSbmiwIi on .£ •".£';' dissected. 

 tuwegnm, p. 1S9. Artemisia, p. IWs 



-■!■ Leaves entire, white u 



GXAPHALILM. p. 121. AC-.TEXNAP.I A, D. 191. FlEAGO, p, 192.' 



***** * Herds mostly discoid. Pappus soft and axillary. Lkovet 

 tern&te. EUmers whitish or yellow, rarely scarlet. 



rmXBS, p. 192. Oa?vlia, p. 193. Ssxieio, p. 194. Arm-: v. f 



****** Heads ovoid, discoid, rarely radiate, hoir. 

 nious (rarely dioecious), heterogamous, vrith the aurg 

 Sowers in a single series 



* Flowers mostly purple, t/.ue or whitish, rarefy yellowish. Z 

 with sharp prickles. 



Qqctattrka, p. 195: Ciftsriix, p> 198. Oro?oai>ox, p. 19?. Lappa, p. !?•$ 

 M99 



**J?Krtics with yellow, oranga, or rarely white or purplish flowera 

 Qaukdula, p. 199. Carthamus, p. 199. Xbbasthmum, p - 

 -i-tLIGULIFLORE-S— Flowers allperfoct, with ligulate (atrap-fihapedQ c 



throughour 



* Branches of the style slender, obtuse, uniformly hairy 

 Etrbsyicith a milky fuice, and alternate haves 



* Flowers-hive, or purplish. 



Cichoricm, p. 200. ftftntafeMOV? p. 204 Traioi-oodx, p. 205. Cat\n'.nc3s. p : 



* * Flouers yellow. Z«ares radical, lyrate, toothed or pinnitin i. 

 Sriqia, p. 291. CryiaiA, p. 201. LsosTOKOH, p. 201. Taraxicvk, p. 203. 



* * * Flowers yellow, or rarely whitish or purplish! Stems leafy, more or lem 



Ctmhia, p. 201. IIixracicm, p. 202. Nabulcs, p. 202. Lacicca, p 29J 

 Baca, p. 205. Traoopogox, p. 20i. 



