A MANUAL OF BOTANY 



89 



seasons). 



Perennial (living three or more 



Few or no animal enemies.* 



Strong odor or taste.* 



Harsh or dry in nature of foliage.* 



Not beautiful or strikingly pleasing.* 



Seeds hard, and these or the fruits 



(A) 



(0 

 if) 

 (k) 



(I) 



(m) Seeds hard, and these or the fruits attractive to 

 birds.* 



(?i) Not native to this country.* 



(o) Native. 



The characteristics that are starred are particularly favor- 

 able (from the standpoint of the very successful weed). 



Definition. From all your observation and study try to 

 express in words a good definition for " a weed." 



Table. ^Nfake a table of all the weeds you are able to find 

 in the vicinity of your home, using the following form: — 



\ A M K 



WlIEKF, 



Native 



Where 

 Gkowixg 



Seki) 

 Keatiues 



iN.ffRrOCS 



OR Not 



Use 



Field work. 1. In any vacant lot near your home, meas- 

 ure off carefully a square plot of ground of some definite 

 size, five or more feet on each side, that contains a large num- 

 ber of weeds. On a large scale, make a map of the plot, stat- 

 ing the kind of soil, amount of moisture, and shade. 



2. Now carefully determine the number and location of 

 each variety of weeds, showing by dots, circles, and other 

 means each different kind; if possible, representing each 

 plant by a mark. 



3. By consultation with the teacher determine the name 

 of each kind. Carefully press and mount on your tablet 

 paper, leaf and fruit of each species, or make careful draw- 

 ings of the same. 



