SPECIAL EXERCISES ON TYPICAL FLOWERS 



Method. Draw the entire plant if it is not too large. If 

 it is too large, make drawings of basal leaves, stem leaves, 

 flowers, fruit, and inflorescence. 



Draw one flower greatly enlarged. Dissect a flower and 

 draw one of each set of parts. How many sepals and petals ? 

 Are they alike in size ? How are they arranged when seen 

 from above? The plants of this order are called crucifers 

 (cross bearers). Why is the name appropriate? Are the 

 stamens alike in length? If not, how many are there and 

 how do they differ ? 



Select an old ovary and cut it crosswise. Draw the sec- 

 tion, showing the attachment of the ovules. From a very 

 old pod find out how they break open and how the seeds are 

 scattered. 



Taste of the seeds or green stems. Describe the peculiar 

 flavor. 



Note. In spring the cresses are abundant. During summer 

 horse-radish and mustard are very common in bloom. Sweet 

 alyssum, candytuft, and wallflowers may be found in gardens 

 and hothouses. Shepherd 's-purse is a common weed belonging 

 to the same family, but its flowers are too small to be studied 

 without the aid of a magnifier. 



176. A LILY OR AMARYLLIS 



Any liliaceous flower will do for this exercise. Tulips, 

 lilies, day lilies, yuccas, star-of-Bethlehem, and hyacinths 

 are common in gardens and are cultivated for ornament. 



Onions, garlic, leeks, and asparagus are esteemed for food. 



Method. Study any of the above plants as in previous 

 exercises. 



Some spring from rootstocks, others from bulbs. If from 

 the former, study and make out the nodes, roots, and re- 



