256 THE TEACHING BOTANIST 



II. The Fungi 



76. What is the structure and ecology of Bacteria ? 

 Answer fully as for Exercise 70. 



On the basis of instruction given you, and your 

 reading, write a paragraph upon the economic 

 aspects of this group of Bacteria. 



77. What is the structure and ecology of Yeast? 

 Write a paragraph upon the economic aspects of 



Yeast. 



78. What is the structure and ecology of Bread Mould ? 



79. What is the structure and ecology of the Mush- 



room ? 



80. From your own studies, from specimens and pic- 



tures examined, reading, and other sources of 

 information, concisely describe : 



(1) the range of habitat in Fungi; 



(2) of color; 



(3) of size ; 



(4) of shape ; 



(5) of texture. 



The outlines, here so brief, will of course be made much 

 more detailed by the teacher, to accord with the details of his 

 own instruction. Henceforth in this series, only the advanta- 

 geous forms for study will be indicated. 



Materials.- -These are easily obtained. Bacteria from hay 

 placed two or three days in water in a warm place ; or from Lima 

 Beans soaked two or three days, and from many other sources 



