WEEDS OF GARDENS AND FIELDS 43 



3. Make a list of the field and garden weeds you are acquainted with, 

 and print the names in alphabetical order on a page of your booklet. 



4. Make a careful study of such of these weeds as your teacher thinks 

 desirable, incorporating the results into your booklet. The following 

 outlines may prove helpful for such studies : 



PURSLANE 



i. Covnt the number of seeds in one "pusley" capsule. 



?.. Count the number of capsules on one long branch. 



3. Estimate the number of seeds produced by the plant. 



4. Count the number of plants in a space two feet square, and estimate 



the number of seeds produced in a square rod. 



5. How are "pusley" seeds distributed ? 



6. When do you find Purslane most abundant ? 



7. Make a drawing of stem, leaf, and fruit. 



LAMB'S QUARTERS OR WHITE PIGWEED 



1. Why should this be called White Pigweed ? 



2. Where have you found it most abundant ? 



3. How are the seeds scattered ? 



4. Do you know how it looks when young ? 



5. Have you seen any leaves affected by leaf miners ? If so, rear some 



of the adult flies from them, and see whether they resemble the flies 

 you can easily rear from spinach. 



6. How early should the plants be destroyed to prevent their maturing 



seed? 

 '/. Draw a good-sized leaf, showing petiole, veins, and margin. 



OUTLINE FOR OTHER WEEDS 



1 . What sort of root has this plant ? 



2. Does it spread by underground rootstocks ? 



3. How is it protected from being eaten by animals ? 



4. When do the flowers appear ? Describe them. 



5. When do the seeds ripen ? How are they scattered ? 



6. Estimate the number of seeds on one plant. 



7. What do the young seedlings look like ? When may they be found ? 



