Pl.ex.cal 39. COMPOSITiE, C. 208. Calendula. 447 



On rubbish hills; annual or perennial; all the year; 

 naturalized. 



Coi'ollae cordial ; also used to reduce saffron. 



XXXIV. 209. HELIANTHUS. Linnaus. Sunflower. 

 Pericline hemisphaerical, spreading ; scales imbricate, 



herbaceous, tip patulous reflexed ; calathides radiated ; 

 flowers of the centre hermaphrodite, bellied ; of the cir- 

 cumference barren, ligulate, ovate, oblong, very large ; c/i- 

 nanthus flat, broad, chaffy; chaffs linear, parted, short; 

 akenium ovate, compressed ; pappus chaffy ; chaffs soft, de- 

 ciduous. — Herb tall ; leaves 3-ribbed ; calatliide terminal, 

 very large ; corollcB yellow. 



Helianthus annuus. Annual sunflmuer. x 



Leaves heartshape, 3-ribbed, hirsute; peduncles thick- 

 ened; caZa^/ifc^e drooping. 



Flos solis, Rail Hist. 334; Park. 297. 

 Flos solis majyr, Ger. em. T51. 

 Helianthus annuus, Lin. S. P. 1276. 

 Greater sunjioicer. Peru marigold. 



Walls and dur.ghills; annual; June to August. 

 Stern from 6 inches to 14 feet high, upright, not branched; ' 

 calatliide solitary. 



XXXV. 210. BIDENS. Csesalpinus. Bur-marigold. 

 BraciecB long, equal, weak, spreading; pericline cylin- 

 drical; scales nearly equal, edges scarious, soft, coloured; 

 calathides flosculous ; flowers all hermaphrodite ; rarely ra-i 

 diated, flowers of the rays hermaphrodite or female ; cli- 

 nanthus convex, chaffy; chaffs similar and equal to the 

 pericline-scales ; akeniiLm compressed, 3-angular ; pappus 

 awned ; awns 2 or 4, rough, persistent, shorter than the 

 akenium. — Root-leaves opposite, 5-cut; calathides axillary 

 or terminal. 



1. Bidens tripartita. Three-parted hur-marigold. 



Leaves 3-parted ; lobes lanceolate, toothed ; calathides 



flosculous; bractecB longer than the calathides; aketiium 



spinous; spines upright, mostly 3. 



Verbesina seu cannabiiia aquaiica flore iiunus pulchro, elatior et magis 

 frequens, Raii Si/n. 187, 1. 



Eupatorium cannabiiiiim fceinina, Ger. em. 717, 1. 

 Eupatorium aquiitjcutn duoruin geuerani. Park. 39o, 

 Bideus tripartita, Lin, S. P. 1165. 

 JVat^i' hemp. Bastard agrimony, fFater agrimoni^. 



