Murrill: Polypores of Temperate North America 9 



Microporellus dealbutus (Berk. & Curt.) Murrill 



I found a plant in North Carolina and I also have one from 

 Auburn, Alabama, collected by Earle and Baker, which appear 

 to be quite distinct from the one usually called M. dealbata. It 

 is claimed that there has been some mistake at Kew and that this 

 thicker plant, often with central stipe, should be called Polyporus 

 dealbatus and the more common one P. mutabUis. If this is true, 

 it would necessitate not only a change of name but also a change 

 in my generic treatment. 



Polyporus craterellus Berk. & Curt. 



It is probable that P. cyathiformis Lev. is not distinct. If so, 

 this name should be taken up. P. confusus Massee is a closely 

 related species recently described from Louisiana. 



Polyporus columbiensis Berk. 

 This species occurs in Oregon rather than in South Carolina. 



Polyporus humilis Peck 

 Compare Polyporus fractipes Berk. & Curt. 



Polyporus arculariformis Murrill 

 Only a small form of P. arcularius (Batsch) Fries. 



Polyporus amygdalinus Berk. & Rav. 



An excellent specimen of this rather imperfectly known species 

 was recently sent in from Montgomery, Alabama, by Dr. R. P. 

 Burke. See list of additions. 



Scutiger retipes ( Under w.) Murrill 



Apparently not distinct from specimens of Polyporus pes-caprae 

 collected by Bresadola in Italy. It is reported from New Jersey 

 and North Carolina, as well as from Alabama. 



Scutiger holocyaneus (Atk.) Murrill 



This can hardly be distinct from vS\ caeruleoporus (Peck) Mur- 

 rill, although I have never been able to compare the types. 



