Crocuses 33 
Another category of flowers are adapted for 
fertilization by smaller flies and lay wait for these 
foolish visitors with traps and snares, as does our 
familiar ‘‘ Jack-in-the-Pulpit.”’ 
There are a few native plants which use carrion 
and dung-flies as their messengers. The carrion- 
flower of New England thickets is one of these. 
They have a putrid smell, often very strong, and 
dull-colored or greenish blossoms. 
Delphino’s sixth class includes those plants 
which seek to snare the fancy and secure the 
services of beetles. These have large diurnal 
blossoms with striking colors, very abundant pollen, 
and nectar so placed that it is within easy reach. 
Among these beetle-flowers is the magnolia. 
Next come the  butterfly-flowers, with bright 
corollas, and with their nectar concealed at the 
base of a tube so long and narrow that only their 
chosen guests can reach and sip it. And in the 
eighth class Delphino places those flowers which 
seek to please twilight and nocturnal moths. 
Some plants have become so dependent on the 
ministrations of insects that they are no longer 
able to set seed by aid of their own pollen. It 
lies upon the pistil as powerless to awaken life as 
if it were mere roadside dust. Some of the 
