Individual complete florets, funnel-shaped, with 5 clefts. 

 Individual florets with pistilla only, narrow, spear-shaped, 

 very slightly marked with 3 teeth. 

 Stamina. Filaments 5, hair-like, very short. Anthera form- 

 ing a hollow cylinder. 

 Pistillum. Germen, in the complete florets, egg-shaped. Style 

 simple. Stigma notched at the end. 



Germen, in the florets having only Pistilla, egg-shaped. 

 Style thread- shaped. Stigmata 2> standing wide. 

 Pericahpium none. Calyx unchanged. 

 Seeds in all the florets, solitary, inversely egg-shaped, com- 

 pressed. Pappus none. 

 Receptaculum, naked, conical. 



CENTAUREA. 



Calyx, common, imbricated, roundish; scales often terminating 



variously. 

 Corolla, compound, florets all tubular, but of different shapes. 

 Florets complete, having both the parts of fructification in each, 

 many, in the centre. Florets having only Pistilla, not so 

 many, larger, more flexible, in the circumference. 



Individual complete florets, of 1 petal. Tube thread-shaped. 

 Border bellying, oblong, erect, terminating in 5 strap-shaped, 

 erect segments. 



Lidividual florets with Pistilla only, of 1 petal, funnel- 

 shaped. Tube slender, gradually becoming wider, bent back- 

 wards. Birder oblong, oblique, unequally divided. 

 Stamina. Filaments 5, hair-like, very short. Anthera forming 



a hollow cylinder, as long as the blossom. 

 Pistillum. Germen in the complete florets, small. Style 

 thread-shaped, as long as the stamina. Stigma very obtuse, 

 (in many cloven,) with a projecting point. 



Germen \n the florets containing only Pistilla, very smalh 

 Style next to none. 

 Stigma none. 



