[Vol. 6 



144 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



brown. The hymenial folds form rather deep pores, radially 

 elongated, transversely venose, and subdivided into smaller, 

 angular pores. The fructification required an interval of sev- 

 eral minutes after water was applied before its broad gelat- 

 inous layer softened sufficiently for sectioning. The spores are 



hyaline, allantoid, 3x1 M- 



This is the common species with snow-white effuso-reflexed 

 pileus, garnet-colored hymenium, large decompound pores, and 

 small allantoid spores, of the eastern United States. I have 

 hitherto regarded it as a form of M. tremellosus, and have 

 cited the various collections of it under M. tremellosus in my 

 paper on 'Merulius.' Collections of it run down to M. tremel- 

 losus by the key to species of that paper, and I am not sure 

 that it should not be referred here. However, upon examining 

 critically seven European specimens of M. tremellosus which 

 have been distributed in exsiccati, I find that none have the 

 red hymenium of M. incarnatus; hence it may be practicable 

 to separate M. incarnatus from M. tremellosus by the red 

 hymenium of the former. Although I am unable to point out 

 any other feature of difference, still such differences may be 



observed later. 



M. incarnatus is common on stumps and logs of frondose 

 species from Massachusetts to Texas, and in Missouri. June 

 to December. 



Specimens examined: 

 Exsiccati : Ravenel, Fungi Car. 2 : 22. 

 Massachusetts: Arlington Heights, E. A. Burt; Cambridge, 



W. G. Farlow (in Mo. Bot. Gard. Herb., 54920). 



New York : East Galway, E. A. Burt. 



Pennsylvania: E. Michener, 478 (in Curtis Herb., and in Mo. 

 Bot. Gard. Herb., 4077) ; Carbondale, E. A. Burt; Trexler- 



town, W. Herbst. 

 Virginia: Great Falls, J. R. Weir, 8005 (in Mo. Bot. Gard. 



Herb., 54932). 

 North Carolina: Schweinitz, type (in Curtis Herb.). 

 South Carolina : H. W. Ravenel, in Ravenel, Fungi Car. 2 : 22 ; 



Santee, H. W. Ravenel (in Curtis Herb.) ; Society Hill (in 



Curtis Herb.). 



