COMPOUND FLOWERS. 323 



I. CICHORACE^E. Chicory Group. 

 All the florets strap-shaped, having stamens and pistils. 



II. CYNAROC^PHAL^I. Thistle Group. 



All the florets tubular, 5-cleft, having stamens and 

 pistils, (except in CENTAUR^A, in which the outer florets 

 are larger, and destitute of stamens and pistils,) and 

 forming a convex head ; style jointed below the stigma. 



III. TUBIFLOR^E. Tansy Group. 



All the florets tubular, 5-cleft, having stamens and 

 pistils, and forming a flat head ; style not jointed below 

 the stigma. 



IV. EADIAT^E. Daisy Group. 



Central florets tubular, 5-clcft, having stamens and 

 pistils ; outer florets strap-shaped, forming a ray, and 

 furnished with pistils only. (Senecio vulgdris, Common 

 Groundsel, has no rays.) 



I. CICHORACE.E. Chicory Group. 



1. TRAGOPOGON (Goafs-beard). Involucre simple, of 

 8 10 long scales, united below ; receptacle dotted ; 

 fruit rough, with longitudinal ridges, tapering into a 

 long beak ; pappus feathery, with the down interwoven, 

 concave above. (Name in Greek signifying a goat's 

 beard.) 



2. HELMINTHIA (Ox-tongue). Involucre of about 8 

 equal scales, surrounded by 3 5 leaf-like, loose bracts ; 

 receptacle dotted j fruit rough with transverse wrinkles, 

 rounded at the end and beaked ; pappus feathery. 

 (Name from the Greek helmins, helminthos, a worm, 

 from the form of the fruit.) 



Y2 



