SS PENTANDRL\. MONOGYNIA. 
SANICULA. Flowers in a fort of umbel', central 
ones barren. Seeds prickly. ^ 
HERACLEUM. FI. radiati, abortivi. Invol. de- 
ciduum. Sem. membranaceat 
HERACLEUM. Flowers radiate', fome barren. 
InvoI. deciduous. Seeds membranaceous. 
CENANTHE. FL radiati; disci steriles. Sem.co* 
ronata, sessilia. 
QEiNANTHE. Flowers radiate', outer ones barren* 
lnvo\. f?nple. Seeds crowned, jilting. 
CAUCALIS. FL radiati; abortivi. Invol. sim¬ 
plex. Sem. muricata. 
CAUCALIS. Flowers radiate ; central ones bar^ 
ren. \x\\(A. fmple. prickly. 
DAUCUS. FL radiati, abortivi. Inv^L pinna- 
tum, Sem. muricata. 
DAUCUS, Flowers radiate', central ones barren. 
Invol. winged. Seeds rough with hairs. 
PEUCEDANUM. FI. flosculosi, abortivi. Invol. 
simplex. Sem. compressa, alata, striata. 
PEUCEDANUM. Ylouvers, uniform ; central ones 
barren. Invol fimple. S>oo.^% depreJfed', fcored. 
CONIUM. FL fiosc. fertiles. Pet. cordata. Sem. 
gibba, costato-sulcata. Invlucella dimidiata. 
CONIUM. FI owers uniform ; all fertile. Partial 
Invol. extending but half way round. Petals heart- 
Jhaped. bulging', ribbed and furrowed. 
BUNIUM. FL fiosc. fert. Pet. cordata. Involu- 
cella setacea. 
BUNIUM. Flowers uniform', all fertile. Paitial 
Invol. like brijlles. Petals heart jhaped. 
