2o8 



MORPHOLOGY. 



tris) there are a large number of other edible species. But 

 one should be very familiar with any species which is gathered 

 for food, unless collected by one who certainly knows what the 

 plant is, since carelessness in this respect sometimes results fatally 

 from eating jjoisonous ones. 



425. A plant very similar in structure to the Agaricus camjjes- 

 tris is the Lepiota naucina, but the spores are white, and thus the 

 gills are white, except that in age they become a dirty pink. 

 This plant occurs in grassy fields and lawns often along with the 



Fig. 244. 

 Amanita pballoides ; plant turned to one; side, after having been placed in a horizontal 

 position, by the directive force of gra\ity. 



common muslirooni. (Sreat (are should be exercised in collect- 

 ing and noting the characters of these ]>lants, for a \ erv deadly 

 poisonous spe(.;ics, the deadly anianita (Amanita ]ihalloides) is 

 perfectly white, has white spores, a ring, and grous usually in 

 wooded places, but also sometimes oct urs in the margins of lawns. 

 In this plant the base of the stem is seated in a cup-shaped struc- 

 ture, the I'olva, shown in fig. 243. ( )ne should dig up the stem; 

 carefully so as not to tear off this voUa if it is present, foi' with 

 the absence of this structure the plant miglit easily be mistaken 

 for the lepiota, and serious conscijuences would result. 



