204 WILD FLOWER FAMILIES 
4. Study the structure of the flower to deter- 
mine these points: 
What reward is offered to visiting bees? 
How is this reward advertised? 
How does the structure and position of 
pistils and stamens bring about cross- 
pollination by means of the visitors? 
How are ants prevented from getting 
nectar? 
How is the washing away of pollen and 
nectar prevented? 
(B) Write a little essay for your wild flower booklet, 
with this title: The Bee and the Betony. Follow 
the outline given under 4 above. 
(C) Illustrate by means of these drawings: Leaf of 
Betony; Flower-head; Sectional view from side 
showing structure and position of pistils and 
stamens. 
(D) Read pages 85 to 90 in Blossom Hosts and Insect 
Guests. ; 
Butrer-Anp-Eces: 
(A) 1. Where does this plant grow? 
2. How does it spread? 
3. What is the color of the leaves? = 
4. What insects can you find visiting the flowers? 
5. How long through the season are the flowers 
to be found? 
6. Study the structure of the flower to determine: 
a. How cross-pollination is brought about. 
b. ‘How self-fertilization is prevented. 
c. How unwelcome guests are excluded. 
(B) Write a little essay for your booklet with this 
title: An Attractive Plant and its Insect Visitors. 
