166 THE BEHAVIOUR OF PLANTS 
T am going to show you a photograph of several heads, 
with the blossoming of the plants in different stages 
Fig. 205. Arum, or “ lords and ladies.” 

and let» you read the 
story (see Fig. 200). 
The Arum, or ‘‘ lords 
and ladies.’’ ‘This is 
an interesting plant 
which flowers in 
spring-time. In the 
centre of the “ sentry- 
box”’ is a club-shaped 
column, and upon the 
base of this column 
there are staminate 
and pistillate flowers 
in two separate groups. 
The scent of the Arum 
is strong and unpleas- 
ant, but attracts many: 
tiny flies. Look at 
the ring of hairs above. 
the groups of flowers. 
These point down- 
wards and keep the 
insects prisoners until 
the staminate flowers are ready to shed their pollen ; 
. then these hairs wither and let the insects creep out 

