Phylum：Ascomycota　>>　Class： Dothideomycetes　>>　 Order： Dothideomycetes 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Pseudocercospora platycaryae
 
   
   
　Author：

Pseudocercospora platycaryae Goh & Hsieh. Bot. Bull. Acad. Sin. 30(2):127-128 1989.
   
 
 
 
 
　Description： Leaf spots on fresh materials irregularly black punctiform, on dried material appearing as irregular brown blotches without definite border. Fruiting hypophyllous. Stomata none. Secondary mycelium external, copious: hyphae emerging through the stomata, pale yellowish olivaceous, 2-4 μm wide, repent, septate, branched, bearing conidiophores as erect side branches. Primary conidiophores only 1-3 subfasciculate, emergent from the stomata, 0-1 septate, irregular in width, pale yellowish olivaceous, 0-1 geniculate, not branched, 13-35 × 2.5-4 μm., conidial scars invisible. Secondary conidiophores borne terminally and laterally on the external secondary mycelial hyphae, not septate, 0-3 abruptly geniculate and tortuous in appearance, pale yellowish olivaceous to pale olivaceous brown, 3-20 × 2.5-5 μm, conidial scars sometimes visible but not conspicuously thickened, truncate, 1.5-3 μm. Conidia cylindric to filiform, pale yellowish olivaceous, slightly curved to undulate, 5-13 septate, sometimes constricted, obtuse at the apex, truncate at the base, 55- 150 × 2.5-3.5 μm, hilum sometimes visible but not conspicuously thickened.
 
 
 
 
 
　Specimens：

Taiwan, Taichung Hsien, Lishan, 21 July, 1986, holotype NCHUPP-223, July 21, 1986.
 
 
 
　Habitat： On leaves of Platycarya strobilacea Sieb. & Zucc.
 
 
 
　Distribution：

Taiwan.
 
 
 
　References：

null
   
   
   
　Provided：

W. H. Hsieh
 
 
　Note： There are several other Cercospora or Cercospora-like fungi in the host family Juglandaceae. Cercospora caryae Chupp & Doidge (Bothalia 4:882, 1948) and C. forsteriana Chupp & Vigas (Bol. da Soc. Brasil. de Agron. 8:26, 1945) differ from this fungus by their fasciculate conidiophores and hyaline acicular to obclavate conidia. Sirosporium diffusum (Heald & Wolf) Deighton (syn. Cercospora fusca Rands Jour. Agr. Res. 1:312-319, 1914) and Cercospora juglandis Kellerman & Swingle differ from this fungus by their conspicuously thickened conidial scars.