SYNGENESIA. 1267 



CLASS XIX. SYNGENESIA. 

 Anthercz united, into a cylinder : flowers compound. 



ORDER I. Polygamia aequalis. 



All the florets hermaphrodite and fertile. 



A. Semifiofcular : all the florets llguldle. 



1462. Scolymus. Receptacle chaffy : down ox calyx imbricate 



and fpinous. 



1461. ClCHORiUM. Receptacle fomewhat chaffy : feeds furround- 



ed with numerous fhort teeth : calyx in- 

 verted with fcales. 



1460. Catananche. Receptacle chaffy \ feeds with 5 awned teeth: 



calyx imbricate, fcacious. 



1454. Seriola. Receptacle chaffy : dovm moftly fimple: ca- 



lyx fimple, many-leaved. 



1455. Hypoch^eris. Receptacle chaffy : down fomewhat feathery : 



calyx imbricate. 



1433. Geropogon. Receptacle fomewhat chaffy: down of the 



difk feathery, of the margin 5-awned : 

 calyx many-leaved, fimple or fcaly. 



1450. Roth 1 A. Receptacle villous, with the margin chaffy: 



down of the difk fimple and fefliie, of the 

 ray o : calyx many-leaved, equal. 



1449. Adryala. Receptacle villous: down fimple, fefliie : 



calyx many-leaved, equal. 



1459. Triptilion. Receptacle villous: down awned, the awns 



hairy at top : calyx imbricate. 



1434. Tragopogon. Receptacle naked : down feathery, on a pe- 



dicle : calyx fimple, many leaves. 



1435. Arnopogon. Receptacle naked: down feathery, on a pe- 



dicle: calyx i-leafed, 8-parted. 



1447. Helmintia. Receptacle naked : down feathery, on a pe- 

 dicle : feeds tranfverfely ftriate : calyx 

 double, the outer 5-leaved and as long 

 as the inner. 



1444. PicRis. Receptacle naked: down feathery, on a pedi- 



cle : feeds tranfverfely ftriate : calyx dou- 

 ble, the outer confiding of fhort fcales. 



1442. Apargia. Receptacle naked: down feathery, fefliie : 



calyx imbricate. 



B 3 a 



