43 



completed the work with a few other discoveries, taking it for gran* 

 ted that, if Rostrup had been ahve, specimens of the said fungi would 

 also have been sent to him and included in his herbarium. 



I have been unable to expose all the present material of fungi to a 

 microscopical examination, it would have taken too long a time and 

 would also have been unnecessary as far as concerns all the parasitic 

 fungi limited to certain host^plants; but I have examined as many as 

 I considered necessary and which caused any doubt as to the accu;; 

 racy of the determination. In the collection I also found several spe;; 

 cimens of denominations out-of-date or related to collective species. 

 Many of the species contained in the collections of the Botanical 

 Museum or the Vet. College were indicated by names which had, 

 later on, been corrected in the herbarium. Species formerly considered 

 wells^separated have later on been united and, vice versa, species for^^ 

 merly considered autonomous have later on been divided. A few 

 times a fungus had been wrongly determined because Rostrup had 

 made a mistake as to the host=plant; in such cases I always discussed 

 the matter with Dr. C. H. Ostenfeld, keeper of the museum, in order 

 to avoid a misjudgement of the determination of Rostrup. Conse=: 

 quently it has been rather an extensive work to refer all the present 

 specimens to their right species. I have considered it unnecessary to 

 note all the cases in which Rostrup's determination differed from 

 mine when the wrong name was only found in the herbarium, but it 

 has been necessary to make a correction every time Rostrup has 

 published a wrong name; this is, however, very seldom the case. 



THE DISTRIBUTION OF THE FUNGI has interested me very 

 much; I have used all the information at my disposal to procure a 

 true picture of the distribution of each separate species; many of them 

 are so common that they may be found everywhere if only they are 

 looked for, but a number, even of the more conspicuous of them, 

 have a distribution which is by no means the same as that of their 

 host=plants. The greater part of the information, based upon the ob* 

 servations of Rostrup and others, which I am able to give concerning 

 the distribution of the separate species in Denmark cannot claim to 

 be considered entirely satisfactory, the fungi being too small and 

 inconspicuous, too little sought after and too alternating in appearance 

 for that, but I hope that the present list of their finding places may 

 cause others to look for the fungi. 



THE FINDING PLACES have all been arranged from north to 

 south and, as far as concerns those from the same altitude, from west 

 to east; first Jutland (J) then Funen (F), Langeland (Lang), Seeland 



