CENTATJBBA. OAEDUUS. 199 



ing. Involucres sometimes glabrous. Fl. yellow.— Cultivated 

 land, probably introduced. A. VII. — IX. Yeliow iStar-tkktle. E. 



5. C. Cakitr(lj)a (L-)i,phytl. glabi-ous-pa.lm.a.telj syinouSyCeii-r 

 tral spine strong channelled, innermostphyll. ^yitli a.scarjous blmit 

 appendage, heads lateral sessile solitary, pappus 0, 1. deeply 

 pirmat^d, lobes of the root-1, lan-ceolate toothed, of the stem-1. 

 linear. — St. furrowed, slightly hairy, branched, spreading, about 

 a foot, high. Fl. purplish. — Q-rayelly and s.andyplaces. A. VII. 

 VrHi 0,om7)ion star-thistle., E. 



[C. as'jierafjj.) ; phyll. palmately smjiona, spines nearly equal 

 '■'t—5, iui|eriEnQst phyll. with a soanous bluiit lanceolate or 

 slightly spathuiate fsp^endnge, heads termitialao^iiaxj, p3.ppus of 

 all the fr. in several rows, I. linear coarsely toothed narrowed 

 below sessile rough, lower oAes (and those of the primary stem ?) 

 broader incise-dentate with .clasping auricles. — C. Isnardi L. 

 —St. procumbent, with long slender simple leafy brp,uches each 

 terminated .-by a solitary head. , iL. ' mostly ; linear,; slightly 

 toothed or entire. Fl. purple.— Typical ■ C. asjiera has its upper 

 leaves sessile but not clasping. — Guernsey. P. VII. VIII.] 



•,[C.. Salman'tica (L.) and C. leucophcea (Jord.) are said tohaye 

 beeii, foujcid in Jersey with C. panipulatal but I have not seep 

 specimenaj , ^ 



■ Section 4. CAUD UINEyE. Head,s many-flowered ; flowers 

 all tubular. Involucre in ininyrows of distinct spinous phyllaries. 

 Filaments distinct. Pappus in many rows, not surroimded by a 

 promiDjent margin. , ,,i?, ^ ,<., , ,. ,-. i .'-nV- :< 



30. Onopok'dum Linn. Cotton TShistle; 



1. O.. Acan'thium (L.) ; st. erect many-headed, 1. elliptic-ob- 

 long IvooUy on both sides.sinuate> spinous decurrent, outer phyll. 

 lanceolate-subulate: recurved and spreading. — St. 4--5 feet nigh',: 

 woolly;, with broad spinous wings, branched. : Inv. nearly globose, 

 large, somewhat cottony f :phyll. 'iriugei with, nainute spinous 

 teeth. El'.pm-pl6:-^Waste ground.-: B. VIII.,i ' E. S. 



31,. CAs!DXJVs,Linn. Thistle. 



[Many hybrids occur in this genus.] 



* Pappus rough. CaedUtJS Sm., DC.,' Koch. 



- 1. C. iisitan^ (L-); 1- decurrent spinoufei Janceolate sinuate. 

 Heads solitary drooping hemispherical, phyll. landeolate cottony 

 (mter ones reflexed. — St. 2 feet. high,, erect, angular, furrotved, 

 cottony, winged.- ' L. hairy on, bothi-aidesj -with woolly veins be- 



