COMPOSITE. 181 



COMPOSITE. 



enTDronXas*" Aoronfinif 'h*^ throughout all countries of the globe, but in verj- differ- 

 ^™V?. c^ ; -^'^^cordingto Humbolt,they constitute about one seventh of the Ph.Tnosr- 



NZrA^nTric: SmXo^^^^^^^ 



Ihev art a [he nr nor in^ n^.T ' ''"'' ■ ""^ '''''f' °^ ^ ^Pical America. In 'New Ho I land 

 of Sicilv le areTne a^f T "" ?"«, .!,'-^^«^"*> according to Brown, while in the Island 

 and he TubnlXr^ln W r. ^'&"''fl°™ "? «.=y'l 1° be most abundant in cold regions, 

 loath America. I^ the ^,nnhf "'-^^'V" f'^biatiflornB are almost exclusively confined to 

 j-outu Amenca. In the northern parts of the wor d the Comnosils! are universnllv he-,- 

 Chlw^l'lf^v"' towards the tropics they gradually become fZescent Ind e ^.^ rees l^ 



«ri^Ti ' ^ , , ^,"™P"3ita3 furnish comparatively few useful nroducis A bitter 



ucLomt.^ tonic anajelnfugal, as in the caniomi e, cots-foot, thorouohwort e-olderimd ,?c 

 Some are a„t^,f.mmUcs from the prevalence of the resinous pincTpSl^laiWlvAilemi^i^ 

 of Arlemisia " O^her' "^".T'' "" '""'''"^''j '''"<^^' =^* -'™W"od and "aU" ',h1'~ cs 

 (Hebam Hmb,m,^n r'^ihP vt^^Tt,?"^ acrid, as mayweed. The Jerusalem artichoke 



Monop/,nlous involucrum : where the scales ar? united by d hi ed-es 

 PotypA2/Ho,« involucrum ; where the scales are distinct " 



SM?;pte invohicrura ; where the scales are equal and arranged in a sin-Ie row 

 rowt/ve"ry fhon o^iT ' ^'^'""' ^ ''"'"^ ^"^^ "'" ^^'^ ^ -™unde7 afblsTby an outer 

 grfS';t.in7r"''^"'' ^^''"^ descales are in several rows, the outer ones becoming 



cr^l::^dCf^i:^slS'ic^,^^^:l,^^inT'^' "'"'^ ^^'^^"'=^'^' '"<=•"-'• ^^ *« >"-'- 



Colunmar,Jlat, conical or depressed^ according to its fiirra • 

 gous to bracts • '^"■^^' '''''"' "" ""'''"'* ^""^ ^"''^'^"''el "y chaffy scales which are anala- 



AreohJe, where the alveoli, are reduced to aiiiere line • 

 lumbnllate, where the alveoli are split into le«th or biistles • 

 mkecL When smoothish, being destitute of chaff, alveoli, bristles &e 



The FLOWERS are moreover said to be ' '"'°'"=-^- "'- 



^the dtfk, where they stand in or near the centre of the head ■ 

 Ofl/i^- my, wnen they .stand in the outer circle or circumference of the head- 



cfSaT-'''''""'"^''''^' " " ■''" '""' "' '"'" "" '"" ''"" '^"'^ ^P--l"pe.' in the forra 

 ^:^^^^"^'Z^^:^^^^,, ^''^ «-- - termed 



r^'^l^'^rl^S^^ ^::^^'^''^^^ -^ P"'^^ - -— -, While those of the 



Kf/\'''i'''''"\\'"' ^°Tl^ """^ ^" '■'""'«'«' ^« ■» *e dandelion ; 

 .nS lif^rT '^ "' """ '^^' "' ™^''^"' °"'5' "^^-^ 'io^'a'-> tl^-^ ^est being tubular, as 



Mnt"^'^ '^■''"f ''" 'u^ *'°^''°'? "'"'= t"""'!^^' as in the thoroughwort : 

 M«noPctot«, where the saine head has bollJ staminate and pistillate Powers • 



na?'3S:^]:s*or;iS;^:'S;^' ^'^-^ ^^^ -- °^ - ^-"^"^°»^ °^-™- 



iy;^':S,^tmi'SsdbS: h^^^Hilir '^: "^!'^'"<'-'''-'« -I'h staminate heads on- 

 prolonged at the sumrni Into a men^^^ranoTts apriiX4^''%"H*"!^^ appendkulate. that is, 

 trate, when thev are nr<,lon<rp,i "'Y'""^^™"* appendage. The aciiexia are termed nw- 

 as in the dandeHon ^'"^"''^''^ ^^ "><= «"™'"" ""o a slender neck supporting the pappus. 



