196 45. COMPOSITE. 



(13.) 11. FILAGO. Outer fl. fern., filiform, in several rows; 

 outermost ones intermixed with the inner phy liar ies; central fl. 

 few, perfect, tubular. Receptacle conical, scaly at the margin. 

 Inv. subconical, imbricate ; phyll. lanceolate, longer than 

 the flowers. 



(14.) 13. ANTENNARIA. Heads subdioecious. Male fl. tubu- 

 lar ; style almost simple ; pappus clavate. Fern. fl. fili- 

 form. Keceptacle convex, not scaly. Inv. hemispherical, 

 imbricate ; phyll. coloured at the end. 



B. Pappus 0, or membranous. 



t Receptacle without scales. Heads radiant. Fl. ef the ray 

 fern., ligulate, in 1 row; of the disk herm., tubular. 



(15.) 6. BELLIS. Phyll. in 2 rows, equal, blunt. Eeceptacle 

 conical. Fr. compressed. Pappus 0. 



(16.) 17. CHRYSANTHEMUM. Receptacle flat or concave. 

 Fr. of disk terete, without wings ; of the ray slightly an- 

 gular or somewhat winged. Pappus or of 3 minute teeth. 



(17.) 16. MATRICARIA. Receptacle at length conical. Fr. 

 angular, not winged. Pappus 0, or a slight membranous 

 border. 



ft Receptacle without scales. Heads discoidal. 



(18.) 19. ARTEMISIA. Fl. of disk perfect; of the ray* fern., 

 slender, in 1 row ; or all herm. and tubular. Involucre 

 roundish. Phyll. imbricate. Receptacle naked or hairy. 

 Fr. obovate, with a small epigynous disk, without pappus. 



(19.) 20. TANACETUM. Fl. as in Artemisia. Involucre he- 

 mispherical. Phyll. imbricate. Receptacle naked. Fr. 

 oblong, angular, with a large epigynous disk (as broad as 

 the fruit), crowned with a slight membranous border. 



fft Receptacle scaly. Pappus scale-like. 



(20.) 24. GALINSOGA. Heads radiant. Fl. of ray fern., 

 ligulate, in one row ; of the disk perfect, tubular. Recep- 

 tacle conical. Phyll. 4 5, broad, ciliate, in one row. Fr. 

 prismatic, with a pappus of oblong scales. 



tt+t Receptacle scaly throughout. Pappus 0. 



(21.) 15. ANTHEMIS. Heads radiant. Fl. of the ray fern., 

 or neuter, ligulate, in 1 row j of the disk perfect, tubidar. 



