SYNGENESIA. 
LACTU’CA....... Receptacle naked : Down hair-like ; 
on a pedicle: Cal. tiled; scales 
skinny at the edges. 
HIERA’ CIUM. .... . Receptaclenaked : Downhair-like; 
sitting Cal. tiled; egg-shap- 
porwcrtUe. oe. Receptaclenaked: Down hair-like 5 
sitting: Cal. tiled; bellyi 
Ey (at the ba se.) y ng 
LAPSANA. ces “Receptacle naked Down none: 
ible, 
TU oERis:.. > «5 feaapeat jk: : Down hair-like; 
ae y encompassed by awned chaff: 
Cal, equal. 
(2) Flowers in globular heads. 
GARONA, .) . <5 Cal, radiate: Rays coloured. 
ARC TIUM.: «:. 5:00 Cal. scales bent inwards at the 
points, and hooked. 
CAR’DUUS. . . Cal. with rice scales ; bellying: 
Recept. hai 
ONOPOR’ DON... . . Cal. with pore iii ect 
Recept. like a honey-c 
SERRA’TULA. .... Cal. nearly cylindrical ; ; Brey : 
scales rather acute but not 
thornlike 
[Centaurea nigra. | 
~ (8) Florets all tubular. 
EUPATO’RIUM. . es naked: Down feathered : 
tiled: Pistil very long. 
SANTOLI’NA, ... capa haffy: Down none: Cal. 
tiled ; hemispheric cal. 
BY'DENS, cide kan Beni or : Down awn-like : 
[Senecio Negri Tanacetum Wk Tussilago Peta- 
Aster Tripolium. 
