The fungi which have been living in Denmark in earher geological 

 periods and which are now found in fragments of plants in moors 



E. ROSTRUP C. 1885. 



etc. were always brought to Rostrup for determination (see f. inst. 

 Hartz 09, R98q). 



It was a great help to Rostrup in his study of the fungi that he 

 had such a thorough knowledge of all the phanerogames in this couns 

 try; he knew the normal exterior of all the plants and was at once 

 able to see if they were ill or ailing in any way he was even able to 

 determine tiny fragments of living or dead plants, and only very sels 

 dom was he caught in the trap in which phytopathologists are often 

 caught: to be mistaken in a parasitic fungus because of being mistaken 

 in the substratum. He know every single species of the wild plants 

 of Denmark, of which the ten editions of his "Vejledning i den dan; 



