Order 10.— COMPOSITES. 



407 



fcmlOKldfeMftlsd,* In the chamomile, colt s.root,thoroughwort jg*-" **£ J^K 

 Stheluiintics fro.nthe prevalence of the resinous I'"i.ciple ast " «£ A run u. a ve ^ 

 Others are aromatic and extremely bitter, as »«7»^^*^ I % 1 !K£S tuberoses) the vego- 



^ y 7 e «^ 



too only species useful lor food. The order abounds in ornamental plants. 



641,6*. 1. HeUwaw. Lead radiate. 2. Vertical section ofrte l^^^^^S^Tw 



end a sinirlo disk-flower ictniininK upon the convex receptacle. .. A Pertect an, u. "<""£" £ 7 A 

 pan 4. Head (radiate) of Solipago 5. A pistillate l.gnl*. tajwo f the «>■ ^ lo A ^ '™£ plan U 

 radiant) head of Taraxacum. KA perfoc l.guhue n. 9. Ac Jienmro, wun us e ^^ jj.4 



re- a o o A „roWSe| 2r-«&& $^£^3^ ' 



17. Ambrosia (Pigweed). IS. Stamuialo head enlarged. 19. Pistillate involucre enuutfw 

 flower. 



16. A flower. 

 ». The fertila 



The following (not conveniently used in Analysis) are Do Candolle's 



SUBORDERS AND TRIBES. 



L TUBULIFLOR.E.— Corolla of tho perfect fls. tubular, 5-lobed. (A) 

 Tbibe 1, Veknoniace.e. Branches of the style long, slender, terete, and hispid 



aUovcr. Heads discoid ; flowers all alike perfect • IN0S - 



Tbibb 2, Eupatoeiack.b. Branches of the stylo clavate, obtuse, flattened, 



minutely pubescent. lids, discoid. Fls. all alike, perfect ....flos. *-* 



Tbibz 3 Asteroids*. Branches cf tho style flat, linear, downy abovo and 



opposite the distinct, stigmatic lines, appendaged at top. Heads discoid ^ ^^^ 



or radiate ,*"!," 7" 1 1 



Tiuce 4, Sekecionid.e. Branches of tho style linear, fringed at the top, truncate ^^ 



or extended into a conical, hispid appendage * 



Teibb 5, Cysabe*. Stylo thickened or node-like at top ; branches not appen- ^ 



daged, the stigmatic lines not prominent, reaching the apex <*>. 



II LIGULIFLOR.fi.— Corollas all lignlate (radiant), tho flowers all perfect. (B) 

 Tbibe 6, CionoBAOUb Branches of tho style long, obtuse, pubescent all over ; 



stiamatic lines commencing below their middle. Juice milky «<» J*— 1 * 



Til L\BI VTIFLOR.E.— Corolla of the perfect flowers bilabiate. (C) 

 Tbibb T, HffUSMfflML Stylo nearly as in Cynarcte, the branches obtuse, very 



convex outside, minutely downy it tho top x °* 



