RIDDLES IN FLOWERS 211 
description. The flowers are visited by small 
bees, butterflies, and other insects. At the left is 
an insect just alighting on a clump of the blos- 
soms of the high-anther form indicated below it. 
The black probe represents the insect's tongue, 
which, as it seeks the nectar at the bottom of the 
tube, gets dusted at its thickened top with the 
pollen from the anthers. We next see the insect 
flying away, the probe beneath indicating the con- 
dition of its tongue. It next alights on clump 
No. 2, in which the flowers happen to be of the 
high-stigma form, as shown below. The tongue 
now being inserted, brings the pollen against the 
high stigma, and fertilizes the flower, while at the 
same time its tip comes in contact with the low 
anthers, and gets pollen from them. We next see 
the insect flying to clump No. 3, the condition of 
its tongue being shown below. Clump No. 3 hap- 
pens to be of the first low-stigma form of flowers, 
and as the tongue is inserted the pollen at its tip 
is carried directly to the low stigma, and this flow- 
er is fertilized from the pollen from the anthers 
on the same level in the previous flower. And 
thus the riddle is solved by the insect. From 
clump to clump he flies, and through his help 
each one of the pale blue blooms is sure to get its 
food, each flower fertilized by the pollen of an- 
other. 
Another beautiful provision is seen in the dif- 
