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NGN- VASCULAR PLANTS. 

 I. FUNGI. 



Only the higher forms of this group will be 

 considered. In these the subaerial portion only is 

 dealt with, and not the chief vegetative portion, the 

 mycelium, growing in the substratum. One regards 

 the "mycelium" of the substratum as the root-system, 

 the "stipe" as the stem, and the "pileus" as the 

 flower or fruit. 



In dealing with abnormalities in this group great 

 caution is necessary in the interpretation and classi- 

 fication of the various phenomena met with, chiefly on 

 Recount of the extreme plasticity and simplicity of the 

 "tissues" composing the plant. Nevertheless we can 

 doubtless employ much the same type of classification 

 of the abnormalities here as is done in the case of the 

 higher plants ; for, as a matter of fact, we do meet with 

 true counterparts, in this lowly kingdom, of many of 

 the morphological changes with which we are familiar 

 in the vascular plants ; and this, for the reason that, 

 as above pointed out, we see the analogical counter- 

 parts in the higher Fungi of some of the main organs 

 of the higher plants, just as will also be seen to be the 

 case in the Bryophytes. 



A different method is adopted here from that pursued 

 in later sections of this work. Instead of classifying 

 the phenomena under the heads of the organs concerned, 

 Masters' plan will be followed and headings made of 

 the abnormalities themselves. 



