78 NATURE STUDY AND AGRICULTURE 
Some examples of composites are : 
(a) In our gardens — sunflower, aster, zinnia, dahlia, 
bachelor’s button, marguerite, daisy, cosmos, coreopsis 
calliopsis, marigold, golden glow, and lettuce. 
(b) Prairie flowers and weeds — wild sun- 
flower, wild aster, goldenrod, coneflower, blaz- 
ing star, ragwort, dandelion, thistle, sow thistle, 
and horse weed. 
The Rose Family. — This is a large group 
of plants producing some of our favorite flowers 
a, sow this: and our strawberries, raspberries, and black- 
tle; 6,dande- berries. The structure of the flowers is well illus- 
lion, with their : ‘i i 
arias ma. trated in the wild rose. The calyx consists of 
chines. five sepals united at the base and forming a 
deep cup. The five petals and numerous stamens are set 
on the edge or rim of the lining to this cup, and the many 
pistils on the bottom. 
Some of the plants having a flower 
of similar structure, and belonging to 
related families, are the apple, pear, 
plum, cherry, June berry, and haw- 
thorn. 
It is very interesting to study some 
of these blossoms, then make sub- Diacram or a Witp RosE 
sequent observations, and learn the | Showing how the petals 
. ° . . and stamens are inserted on 
various ways in which our fruits are the rim of the cup and the 
developed from the flower. pistils on the bottom; a, 
The Carrot or Parsley Family. — ee “lias 
This group of plants may easily be the many stamens and pistils 
distinguished by the form of the 2% Tepresented. 
flower cluster, which is an wmbel — usually a compound 
umbel. The individual flowers are very small, and those 
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