SYNOPSIS OF THE GENERA. 
B. Receptacle paleaceous, pappus feathery. 
17. Caruina, [Page 1047.] Involuerum imbricated, tumid, 
the outer scales with numerous spines, spreading at the 
points, the inner mostly simple and acute, the innermost 
much longer, membranous, ligulate, coloured, spreading 
like rays. Receptacle paleacous, the scales cut into 
bristle-shaped segments. Pappus feathery, united at the 
base into a ring. 
C. Receptacle between paleaceous and bristly. 
* Pappus hairy or feathery, united at the base into a ring, 
feathery. 
18. Car’puus, [Page 1048.] Jnvolucre imbricated, tumid, the 
scales simple, spinous at the point. Receptacle palea- 
ceous, the scales cut inio bristle-shaped segments. 
Pappus hairy, united into a ring at the base, deciduous. 
20. Cir'stum, [Page 1050.] Involucrum ovate, imbricated, 
the scales simple, spinous atthe point. Receptacle pale- 
aceous, the scales cut ihto bristle-shaped segments. 
Pappus feathery, united at the base into a ring, deci- 
duous. 
** Pappus of short unequal hairs. 
19. La’pea, [ Page 1056.] Involucrum globose, imbricated, the 
scales spinous, the apex recurved into a hook. Recep- 
tacle paleaceous. Pappus short, of rigid unequal hairs. 
21. Serra'tuLa, [Page 1057.] Jnvolucrum oblong, imbri- 
cated, the scales unarmed, acute. Receptacle paleaceous, 
the scales mostly cut into numerous linear bristles. 
Pappus persistent, of unequal rigid hairs. 
*** Pappus of mixed, toothed, und feathery hairs. 
5 22. Saussu'rEA, [Page 1058.] Jnvolucrum oblong, imbri- 
; cated, the scales unarmed. Receptacle paleaceous, or 
. bristly. Pappus in two rows, the outer of short minutely 
notched hairs, the inner feathery and longer. 
3. Florets all with tubular corollas, erect and crowded, forming 
a level top, without a ray, or rareiy with one. 
A. Receptacle naked. 
* Pappus hairy. 
23. Evra’rorium, [Page 1059.] Jnvolucrum oblong, cylin- 
