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 tesults into your booidet. The following 

 outlines may prove helpful for such studies : — 



Purslane 



I . Cornt 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 fhiit. 



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 t& prevent their maturing 



seed? 



7. 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 ? 



