A new genus, Cruentomycena, with Mycena viscidocruenta as type species

Abstract

Mycena viscidocruenta is presently known only from the Antipodes. Collections from far eastern Russia were shown to be closely related both by morphology and by sequence homology. Phylogenetic analyses based on ribosomal LSU and ITS sequences show that the M. viscidocruenta clade is sister to Panellus stypticus and Panellus (Dictyopanus) pusillus, two laterally stipitate taxa, in the panelloid clade. Resinomycena rhododendri, the type species of Resinomycena is basal to this group. A new genus, Cruentomycena, is proposed to accommodate C. viscidocruenta (typus generis) and a new species, C. kedrovayae. Introduction Mycena viscidocruenta is a small (cap 7–11 mm), bright red agaric with a very slimy stem and cap. Fruiting on leaves and small woody debris, it has been reported from the southeastern Australian mainland and Tasmania (Grgurinovic 2002; Fungimap, Australia: http://fungimap.rbg.vic.gov.au), and from the North and South Islands of New Zealand (McKenzie et al. 2000, on Nothofagus debris; Segedin & Pennycook 2001; E. Horak, pers. com.). An LSU rDNA sequence of Tasmanian material was used by Moncalvo et al. (2002), who showed that collection to belong to the panelloid clade (denoted as /panelloid). That paper further noted that a relationship among Resinomycena rhododendri (typus generis), Mycena viscidocruenta, Panellus (pleurotoid, lamellate) and Dictyopanus (pleurotoid, poroid) had not previously been reported (Singer 1986), but did not discuss morphological circumscription of M. viscidocruenta or the proposed merger of Dictyopanus and Panellus (Burdsall & Miller 1975).

Full text

MYCOTAXON
Volume 105, pp. 119–136 July–September 2008
A new genus, Cruentomycena,
with Mycena viscidocruenta as type species



1 repete@utk.edu
1 University of Tennessee, Knoxville, TN 37996 USA
2 Bridgewater College, Bridgewater, VA, 22812 USA
3 Komarov Botanical Institute, St. Petersburg, 197376, Russia
  Mycena viscidocruenta       

     
    M. viscidocruenta     Panellus stypticus 
Panellus Dictyopanus pusillus        
Resinomycena rhododendri     Resinomycena     
CruentomycenaC. viscidocruenta
C. kedrovayae

Introduction
Mycena viscidocruenta           
             
        


Nothofagus


Resinomycena rhododendri
  Mycena viscidocruenta Panellus   
Dictyopanus        
M. viscidocruenta
DictyopanusPanellus



Alnus
           M.
viscidocruenta



          
Mycena viscidocruenta



Methods and materials
Morphological analyses



 

Molecular protocols
           





            






Molecular Data Analyses
      

MycenaPrunuluspura   

MycenaFavolaschia   
 Panellus stypticus 

CruentomycenaMycena viscidocruenta ... 




   

   Mycena pura 
   Mycena pura 
   Mycena pura 



  Mycena afn pura 

  Resinomycena acadiensis 
   Resinomycena rhododendri 
   Resinomycena rhododendri 



  Resinomycena rhododendri 
   Resinomycena rhododendri 

  Cruentomycena viscidocruenta 


  Cruentomycena kedrovaya 
   Cruentomycena kedrovaya 
  



Cruentomycena kedrovaya 




  

Cruentomycena viscidocruenta 



   Panellus (Dictyopanus) pusillus 
   Panellus (Dictyopanus) sp. 
  Panellus (Dictyopanus) sp. 
   
   Panellus pusillus 
   Panellus pusillus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 

   
 Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 

   
 Panellus stypticus 

   
 Panellus stypticus 

   
 Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 
   Panellus stypticus 

   
 Panellus stypticus 


Table 1, concluded.

CruentomycenaMycena viscidocruenta ... 





        
 

 

          

            
           
          



 
         

Results
Taxonomic description
 

MycenaViscidocruentae

Cruentomycena viscidocruenta
MycenaMycena
Basidiomata mycenoidea vel marasmielloidea. Pileus diminutivus, planus ad depressus,
viscidus, sanguineus; trama pseudoparenchyma, pseudoamyloidea. Lamellae arcuatae ad
decurrentae, crassae, cinnabar-sanguineae, marginatae. Stipes tenuis, levis, aequalibus.
Hab: in ramunculi et folia. Hyphae pileipellis angustae, tenuitunicatae, fibulatae.
Cheilocystidia praecentia. Pleurocystidia nulla. Sporae elongatae, amyloideae.
     
Viscidocruenta viscidocruenta
           



Mycena viscido-cruenta 
Mycena coccinea


M. coccinea


Mycena coccinea
M. viscidocruenta
         
              

        

         

           



          

    

    
         
         
 
        
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

       
       
        
       


      

        
       
       
        
      
           

CruentomycenaMycena viscidocruenta ... 
Cruentomycena viscidocruenta





       





            
M. coccinea

    
           



         


C. viscidocruenta
M. coccinea

           
    




 

       


 M. viscidocruenta Hygrocyboideae
      Gummosae   
         
   Viscidocruentae     
       
        

Mycena


            







CruentomycenaMycena viscidocruenta ... 
         
        M. coccinea    
 M. viscidocruenta        
          
Mycena coccineaM. viscidocruenta

M. coccinea
M. viscidocruenta




  


 
Ut   vel stipite et pilei vix glutinosa, habitat in Alnus amenta et
ramunculi, cheilocystidia uniformiter lato-clavata, et distributo geographica in Asia
occidentalis-septentrionali.
       




     
          
      
 

        




 


 AlnusAlnus 


 
       
    


      
           


       

        
           
         





 


  

      



          
       
          
       
          
        
     


 
       Alnus 
     

    Xeromphalina


Xeromphalina

CruentomycenaMycena viscidocruenta ... 
Cruentomycena kedrovayae,



Cruentomycena kedrovayae


          
Panellus Dictyopanus  Resinomycena     
  

         

Resinomycena
Mycena
viscidocruenta. 

CruentomycenaMycena viscidocruenta ... 
M. viscidocruenta

  



M. viscidocruenta

M.
viscidocruentaResinomycenaR. rhododendri
          
    
          
 
Resinomycena 
M. viscidocruenta
R. rhododendri   
M. viscidocruenta
R. acadiensis

M. viscidocruenta
  M. viscidocruenta 

 Resinomycena rhododendri   

 TFB 1852TENN 48598

    Clitocybe TFB 13275 TENN 61536   
    
TFB 3574TENN 50793
TENN 23102
 C. kedrovayae    
     
XeromphalinaTFB 11844TENN
60729       LE212084
LE(BIN)2000
TFB 11831TENN 60716
         
             
Resinomycena rhododendri Cruentomycena  Panellus stypticus
 Panellus Dictyopanus pusillus      
R. rhododendri



Discussion
   Cruentomycena kedrovayae  
  Cruentomycena
viscidocruenta  
          
    

Resinomycena    MycenaMarasmius
Omphalina       

     Resinomycena rhododendri 

M. viscidocruentaR. rhododendriC. viscidocruenta

C. viscidocruenta
C. viscidocruentaR. rhododendri.R.
rhododendriC. viscidocruenta
Alnus
Mycena viscidocruenta        
Panellus stypticusDictyopanus D.
pusillusD. copelandiiPanellus pusillus
Dictyopanus  Panellus   

  

  
P. stypticusP. (Dictyopanus) pusillus 
Panellus stypticus
        P. pusillus
      P. stypticus   
 

C. kedrovayae



          Mycena. roseilignicola

      
Lentinulaedodes 

CruentomycenaMycena viscidocruenta ... 

             

          
        
    

Panellus stypticus Xerula globospora 
Oudemansiella altissima


   


   
         
   






CruentomycenaMycena viscidocruenta ... 



  
       Alnus   

C. viscidocruenta
C. viscidocruenta
         

Acknowledgments

M. viscidocruenta. 


     

Literature cited
PanellusDictyopanusAgaricales

  
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

HohenbueheliaOudemansiellaOudemansiella






Mycena
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Mycena interrupta
Mycena viscido-cruenta
     Lentinula





 PanellusAgaricales


Panellus stypticus
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


Gymnopus
               

   
   Agaricales

 Nothofagus

 
          
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 
              

     

     Xerula     

   

ResinomycenaAgaricalesHydropusMycena
Baeospora
Resinomycena japonicaResupinatus meruloides
Agaricales



Agaricales
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