Mo7'pholog'y, 3 7 



but tlie lionest worker can well afford to ignore the 

 ridicule so liberally meted by many members of the 

 Friesian school of f ungologists ; and at the present 

 day, the person who considers that investigations con- 

 nected with the life-history of species are not indis- 

 pensable factors, may safely conclude that he has 

 mistaken his vocation in taking up the study of fungi 

 as a scientific pursuit. Of course, there is no absolute 

 harm in a person endeavouring, by the aid of books 

 and pictures, to find out the name given by some one 

 else to the fungi met with during excursions, nor 

 even in drawing up a list of the same for publication, 

 but at the same time it does not require more than 

 a mind of average constitution to realize that the 

 amount of time and labour bestowed in the production 

 of such a list results in the minimum of additional 

 knowledge imparted to the world at large. 



The lio^t is the name given to any plant or animal 

 supporting a parasitic fungus. It will have been 

 noted that the pleomorphic fungus, Puccinia gramiriit;, 

 li*ves at different periods on two distinct host plants, 

 the Uredo and Puccinia stages being passed on wheat 

 or some graminaceous plant, whereas the ^cidium 

 stage is spent on barberry leaves. The term lleterce' 

 cism or Metoecism is used to ex"Dress this condition of 

 things, and in the Uredinese- heteroecismal species are 

 common. 



In connection with the study of fungi, the word 

 sjpore can scarcely be said to have a scientific or exact 

 meaning. It has always been used in connection with 

 specialized reproductive bodies, but, as already ex- 

 plained, reproductive cells are of various kinds, and 



