COMPOSIT.E. 39 



those of the disk perfect, and those of the margin female {hetero- 

 gamous and discoid), or all the florets tubular and perfect {liomo- 

 gamous and discoid). Style not thickened below the point where 

 it divides into two branches. Pcricline usually hemispherical or 

 saucer-shaped. Phyllaries not spinous-pointed in any of the British 

 species. Juice not milky. Plant often aromatic. 



Tribe I.— ANTHEMIDE^. 



Leaves alternate. Anthodes generally heterogamous and ra- 

 diant. Elorets of the disk tubular, perfect ; those of the ray 

 generally female, more rarely neuter, ligulate or more rarely 

 tubular. Anthers without basal appendages. Branches of the 

 style in the fertile florets linear, convex externally, flat inter- 

 nally, hairy or tufted at the apex. Achenes various ; pajipus 

 none or membranous and crown-like. 



GENUS IX.— C HRYSANTHEMUM. rm^i. 



Anthodes heterogamous and radiant, rarely discoid, many- 

 flowered. Clinanth hemispherical, more rarely nearly flat or 

 conical, without paleae. Pericline hemispherical or saucer- 

 shaped, of numerous phyllaries which are generally imbricated, 

 herbaceous with scarious margins. Plorets of tlie disk tubular, 

 perfect ; those of the ray generally ligulate and female. Achenes 

 cylindrical or prismatic or trigonous, ribbed, crowned by a large 

 epigynous disk, with or without a membranous crown representing 

 the pappus. 



Herbs with alternate toothed or finely-divided leaves ; anthodes 

 generally rather large, with the florets of the disk yellow, those 

 of the ray white, yellow, or rose-colour. 



The name of this genus of plants conies from the words yjpvao^ (chnisos), golden, 

 and (iiOor (anthon), flower, desci'iptive of its large yellow blossoms. 



Sub-Genus I.— EU-CnBYSANTHEMUM. 



Clinanth flattish or slii'htlv convex in fruit. Elorets of the 

 ray yellow, ligulate, 4- or 5-toothed at the apex. Achenes of two 

 forms, those of the female flowers of the rav tris-onous or tri- 

 quetrous, compressed, sometimes with the lateral angles winged, 



