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

Basionym: Cercospora subsessilis Sydow, Annls mycol. 11:329, 1913.

Pseudocercospora subsessilis (Sydow) Deighton. Mycol. Pap. 140:154 1976.

   
 
 
 
 
 Description: Leaf spots circular to angular, 2-5 mm wide, sometimes zonate, tan, grey or pale brown, each zone being bounded by a dark brown line, on dried specimen appearing grayish to whitish and punctiform in the center, with a narrow dark margin. Fruiting amphigenous, punctiform. Secondary mycelium absent. Stromata globular, dark brown, 30-65 μm wide. Conidiophores very densely fasciculate, compact, subhyaline to pale olivaceous brown, 0-2 septate, not constricted, not branched, straight to slightly geniculate, conically truncate to rounded at the apex, 10-40 × 2-4 μm; conidial scars unthickened. Conidia subhyaline to faintly olivaceous, cylindric or cylindro-obclavate, straight to mildly curved, 3-10 septate, subobtuse to rounded at the apex, obconically truncate at the base, 25-90 × 2-4 μm; hilum unthickened.
 
 
 
 
 
 Specimens:

Taiwan, Kaoshiung Hsien, Chihshan, 2 Feb. 1985, NCHUPP-157. Tainan Hsien, Nansi, 10 May, 1931, Herb. NTU-PPE, labelled as Cercospora leucosticta Ell. & Ev.

 
 
 
 Habitat: On leaves of Melia azedarach L.
 
 
 
 Distribution:

Burma, Cuba, Hong Kong, India, Jamaica, Japan, Mainland China, Nepal, Palestine, Philippines, San Domingo, Sierra Leone, Sri Langka, Sudan, Taiwan, U.S.A., Venezuela.

 
 
 
 References:

Hsieh, WH and Goh, TK. 1990. Sawada, K. 1931.

   
   
   
 Provided:

W. H. Hsieh

 
 
 Note: Cercospora meliae Ellis & Everhart (Jour. Mycol. 3: 16. 1887; syn. C. leucosticta Ell. & Ev., Jour. Mycol. 4:53. 1888) differs from this fungus by its hyaline acicular conidia. Both the original specimens of Sawada deposited in Herb. NTU-PPE labelled as Cercospora leucosticta Ell. & Ev. and his original literature (1931) show whitish orbicular punctiform leaf spots, but the conidia are cylindric to cylindro-obclavate in shape (i.e. identical with that of Pseudocercospora subsessilis).