New species and record of Sporidesmium from southern China

Abstract

Four species of Sporidesmium were collected from decaying twigs in tropical and subtropical forests in southern China. Sporidesmium liquidambaris sp. nov. on Liquidambar formosana, S. antidesmatis sp. nov. on Antidesma ghaesembilla, and S. machili sp. nov. on Machilus chinensis, are described, illustrated, and compared with closely related taxa. Sporidesmium takashii is recorded as new for the Chinese mycota.

Full text

  
MYCOTAXON
 
Volume 119, pp. 17–25 January–March 2012
New species and record of Sporidesmium from southern China

Department of Plant Pathology, Shandong Agricultural University, Taian, 271018, China
zhxg@sdau.edu.cn, sdau613@163.com
  Sporidesmium 
      Sporidesmium liquidambaris   
Liquidambar formosana,S. antidesmatisAntidesma ghaesembilla,S. machili
Machilus chinensis, 
Sporidesmium takashii

Introduction
  Sporidesmium  Pleosporales   
S. atrum



           
Sporidesmium
           
SporidesmiumSporidesmiella

Sporidesmium
 

EllisembiaPenzigomyces
 Repetophragma   Stanjehughesia   
       
     
   
 Imimyces  Linkosia 


Imicles  
Penzigomyces Sporidesmium ImiclesEllisembia,
     Sporidesmium  Ellisembia


Sporidesmium

     
          
Sporidesmium


Sporidesmium liquidambaris  

Conidiophora macronemata, nonramosa, 11–72 × 5.5–9.5 μm. Cellulae conidiogenae
monoblasticae, integratae, terminales, per usque ad 7 extensiones lageniformes vel
ampulliformes percurrentes. Conidia solitaria, obclavata, verruculosa, 11–26-euseptata,
110–165 × 20–24 μm, apicem versus ad 3–4.5 μm attenuata, basi truncata 4–5 μm lata.
         Liquidambar
formosanaHamamelidaceae   

 Liquidambar
         





   
      

        


    Sporidesmium  S. liquidambaris
 S. ghanaense     S. matsutakashii 
S. tengii  
S. liquidambarisS. ghanaense
  S. tengii 
S. matsutakashii

Sporidesmium ... 
Sporidesmium liquidambaris

S. liquidambaris
S. ghanaenseS. matsutakashii,S. tengii
Sporidesmium antidesmatis  

Conidiophora macronemata, nonramosa, 17–70 × 6–7.5 μm. Cellulae conidiogenae
monoblasticae, integratae, terminales, determinatae, cylindrica. Conidia solitaria,
obclavata, laevia, brunnea, 8–11-euseptata, 108–150 × 9–11 μm, apice rotundata, ad 3–4
μm lata, et muco subgloboso usque 12–24 μm diam. tecta, ad basim 4.5–6 μm lata.
Antidesma ghaesembilla
Euphorbiaceae

 Antidesma
         




Sporidesmium antidesmatis. 

         
        
    


Sporidesmium ... 

  


Sporidesmium antidesmatisS. fragilissimum
         S. eupatoriicola  
   S. antidesmatis   S. fragilissimum 
 
S. eupatoriicola

   S. antidesmatis      
S. fragilissimumS. eupatoriicola
Sporidesmium machili  

Conidiophora macronemata, nonramosa, 15–60 × 3–5.5 μm. Cellulae conidiogenae
monoblasticae, integratae, terminales, determinatae. Conidia solitaria, obclavata, ad
longa rostrata, laevia, 5–7-euseptata, 70–160 × 5–7.5 μm, basi truncate, ad 1–1.5 μm lata,
cellula apicali versus attenuate, pallide brunnea vel subhyalina, aseptata, rostro, ad usque
125 × 0.5–1.5 μm.
       
Machilus chinensisLauraceae

 Machilus
        
        


       


       




Sporidesmium machili
 S. circinophorum    S. takashii 
 S. longirostratum    S. tropicale    
 S. machili   S. circinophorum   
    S. tropicale     


Sporidesmium machili

          S. longi-
rostratum  
        S. machili  
       S. takashii   
 S. machili
 
S. circinophorumS. takashiiS. tropicale
Sporidesmium takashii
 
        
         
      
       

Sporidesmium ... 
Sporidesmium takashii


       





      


  Sporidesmium 
         S. takashii
     Sporidesmium takashii  
S. circinophorumS. tropicaleS. takashii
 S. circinophorum 
S. tropicaleS. takashii
  S. circinophorum      
S. tropicale   

S. takashii  
 

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Acknowledgments


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           

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 Clasterosporium 
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
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   

     Imimyces  Linkosia    
 Sporidesmium     Polydesmus   

Endophragmia

Sporidesmiella

           

        


Sporidesmium ... 
      
   Sporidesmium      

Helminthosporium asterinumPolydesmus elegansImimyces

Sporidesmium  

  EucalyptusChaetophragmiopsis 

SporidesmiumEndophragmiella 
