1.S2 COMPOSITE FAMILY. 



I). Brnnchet of the style long and slender or mostly rather club-shaped, smooth or 

 very mimitrly puberulent under a lens. 



21. LIAT1MS. Heads IP!' -evcral or many rose-purple flower-. -nrronndcd t>y a 



or I.--- iinliriciitcil involucre. Lobes of the enroll:) rather long. A! 

 slender, ill" nit lo-rihbed: pappus of many long and slender bristle<. which are 

 plmiM-e or c]-e be-et with a -liort beard or roughne.- tor their whole length. 

 Le ate, entire. 



22. KI'IINIA. llc;nls small, of l<i-2") dull cream-colored flowers, -urrounded hy a 



laiici'olatr scales ol' tin- iiivoliicn-. Corolla -lender. barely 5-toothed. 

 V eiies cylindrical, many-atriate : pappu- a row of white plumose bristle-. 

 Leaves mostly alternate. 



23. MIKANIA. Hi-ads of 4 flesh-colored flowers, with an involucre of only 4 



scale-. Corolla r.-toothcd. Akene- ~>-anglcd: pappus a row of hair-like 

 naked t . lian-K- roii'.dii-li > l>ri-t!es. Leave- opposite; stem twining. 



24. EUPATORIUM. Head- of :t or move llowers, and an involucre of several or 



many -rales. Corolla 5-toothed. Receptacle Hat or merely convex. Akenes 

 fi-anLled: p-ippu- a row of hair-like naked (barely rough) bristles. 



25. CONOCLINIUM. Heads, ^.-c. as in the preceding, but the receptacle conical. 



Flowers many, Idue or blne-pur]ile. Leave- oppo-ite. 



26. AGERATUM. ' Like the preceding: but the receptacle flatfish, and the pappus 



of :i tew chaffy scale-, mostly tapering into a .-lender still' rough liri-tle. 

 Leaves opposite. 



27. PIQUERIA. Heads very small, of 3-5 white flowers, and involucre of 4 or 5 



scales. Akenes 5-angfed: pappus none. Leave- opposite, 3-rilibed. 



C. Branches of the style smooth, with a conical or flat unu&ally minutely hairy tip. 



28. CACALIA. Heads corymbed, with 5 - 80 white or whitish flowers. Scales of 



the involucre a single row, with a few small bractlets at base. Corolla 

 5-cleft. Akenes oldong. smooth: pappus of very manj fine and soft down- 

 like naked bri-tles. Leaves alternate. 



40. BKLLIS. A cultivated state of the Dai-y, with quitted (monstrous) flowers 

 may lie sought here. 



B. \\1tk strap-shaped corollas or rays at the margin of (.' head. 



1. Herbage not spotli-<l iriih 1'inje translucent or colored stropp-icented glands. 



* Pvj>]/* "/' fiijiiints hair-like bristles: no chaff on the receptacle arong the flowers. 



-t- Rays yellow, except in one or two species o/*Senecio and one SoliCago, pistillate. 



29. TUSSILAC.O. Kay-tliwers very numerous and in many rr*s, fertile, with 



narrow lignli-s; the tubular disk-flowers few in the centre, and not fertile. 

 Scale of the involucre nearly in one row. Pappus fine and -oft. Head soli- 

 tary (in a -raly-bracted scape. 



"ii. SENECIO. Bay-flowers several in a single row, or sometime? r>one : the disk- 



flowers (a- in all the following) perfect and fertile. Scale* of the involucre in 

 a single, row, or often with small bractlets at the ba-e. 1'appn* very tine and 

 soft. Heads mostly in corymbs. Leaves alternate, simple or compound. 



31. ARNICA. Ray-flowers several or many in a single row. Sc;d?s of the invo- 



lucre nearly e.mal in 2 row*. 1'appn- a -ingle row of rough rather rigid 

 ln-i-tles. Akenea -lender. Head- few and rather large. Leave- opposite. 



32. INl'LA. Ray-flowers very numerous in one row, with narrow lifulee. outer 



scales of the involucre 'leaf-like. 1'appu- of many slender mui/'ii-h bri-tles. 

 Akenes narrow. Head- lar.je and broad, the tubular perfect Towers very 

 numerous, their anthers with two tail- at the ba-e. Leave- alt.-i * ::te. 



33. CHKYSOl'SIS. 1,'ay-Howers numerou- in one row, scales of the involucre 



narrow, not leaf-like. 1'appu- of many ron^hi-h slender bristles, with al-o an 

 outer n.w of very -In n't and stout or chaff-like bri tie-. Akenes flattened, 

 hairy. Heads sinirlc or corymbed. I..-T es alternate. 



34. SOLIDAGO. Kay-dower- 1 - 8, or ittlv 10-16, the tubular disk-flowers sev- 



' 



eral, rarely many. Involucre obloi^J, 'its gcales imliricated and apj.res-ed, of 

 unequal lengths. Pappus a row of slender ronghi-h bri-tles. Akenes nar- 

 row, terete, many-ribbed. Head- in panicled racemes, corymbs, or chi-t--r-, 

 mo-tlv small. Leaves alternate. 



H . ^ ^,,, /s n-hilc, jnir/ik. blue, (fr. nei'i-r y< Hair, th>- llni-ers (\f the <l!fk mostly 



A-TI:I:S ami tht like. Leaves alternate, simple. Aktnvs flattened or jitittisti. 



86. CALLISTF.PlirS. Ilay-flowers very numerous, usually in more than one row, 



or in cultivated varieties in several rows. Involucre in several rows, more or 



