644 



chlamydosporic specimens, mentioned in Arkiv för Botanik, Band 

 11: 3, pag. 22, really belong here. 



Polyporus unitus. 



What this name respects seems mystic. A specinien in Persoons 

 herbarium, collected on the Vosges Mountains, to which place 

 Persoon refers, is quite identical with his Pol. mediilla panis and 

 does not agree ^yith his description. 



The specimens collected by Sommerfelt, to which Fries refers 

 in El. p. 116, I have not seen. There exists, however, in Fries' 

 herbarium a specimen from Blytt, and this belongs probably to 

 RosTKOvius' Pol. aiirantiaciis, while a specimen from Weinmann 

 appears to be Karsten's Pol. ferrugineo-fuscus. 



Polyporus Weinmanni. 



This plant shall occur according to Fries »in Suecia media haud 

 raro». What species he means is, however, a riddle to me. There is no 

 specimen of it in his herbarium except one from Karsten, and 

 this looks like Pol. fragilis. The description seems also to agree 

 with Pol. fragilis except that the pileus can not properly be said 

 to be »ten ax». 



Bresadola, who in Fungi Pol. p, 73 identifies these two species, 

 seems now inclined to refer my Pol. lapponicus to Pol. Weinmaniu. 

 This should mean that Pol. lapponicus be identical with Pol. fra- 

 gilis, an opinion which is by no means acceptable as the two are 

 in fact far distant from each other. And even if we dröp the opi- 

 nion that Pol. Weinmanni be identical with Pol. fragilis, I can not 

 accept Pol. lapponicus as a true representative of Pol. Weinmanni, 

 as it does not agree with the description, the pores being not 

 »labyrinthic» and not »tactu rufo-fusci», the margin not »thin» etc. 



Polyporus viridans. 



A rich collection of Pol. viridans (Pol. inconstans) from Hemming- 

 skär in Mälaren suggests the opinion that my Pol. Nuoljae be perhaps 

 only a variety of that species, though it has another color. 



