72 THE FLOWER 



(6) If imperfect, is it monoecious or dioecious? 



( 7 ) What is the type of inflorescence ? 



(8) Is the flower apetalous or complete? 



(9) Is the flower poly- or gamo-sepalous ? 



(10) Is the flower poly- or gamo-petalous ? 



(11) Is the ovary superior or inferior? 



(12) How many sepals, petals, stamens and pistils? 



(13) To what are the different sets of organs attached? 



(14) If unsymmetrical, describe the parta. 



( 15 ) Describe the stamens. How do they open ? 



(16) Describe the pistil or pistils. What type of placenta? 

 How many ovules (estimated by cross and long sections) ? 



(17) If a single pistil, how many carpels and chambers? 



2. Plant Description. Having determined the preceding points a com- 

 plete description of the plant and flower should be written. The pupil is 

 now ready to use a manual for the determination of the family, genus and 

 species. The family characters 1 should be carefully noted and when an- 

 other plant of the same family is studied, the pupil should try to determine 

 the family without the use of a manual. 



3- Careful drawings and diagrams should be made of all plants and 

 flowers studied. 



The following types are suggested for these exercises: 

 Monocotyledonous Dicotyledonous 



Lily Rose Potato or tomato 



Tulip Apple or pear Sunflower or daisy 



Lily of the Valley Peach, plum, cherry Dandelion 



Amarillus Blackberry Morning glory 



Indian turnip Pea or bean Melon or gourd 



Wheat Bloodroot Maple 



Oats Mustard Elm 



Corn Buttercup Oak 



Willow 



QUESTIONS 



1. What are the parts of the flower? 



2. What constitutes the floral envelope? 



3. What constitutes the essential organs? 



