Phylum:Anamorphic fungi >> Class: Anamorphic fungi >>  Order: Anamorphic fungi 
   
 
 BCRC Number NO BCRC Number!  
   
 Scientific Name: Pseudocercosporella ipomoeae
 
   
   
 Author:

Pseudocercosporella ipomoeae [Sawada ex] Deighton, Mycol. Pap. 124:38-41. 1973.

   
 
 
 
 
 Description: Leaf spots suborbicular, visible on both surfaces, at first pale green, later yellowish brown, mostly 1-2 cm in diameter, irregularly zonate with indefinite margin, paler on the lower surface. Fruiting hypophyllous, effuse, whitish. Stromata none. Conidiophores hypophyllous, produced singly or in groups of up to 20 from the hyphal cells of the intra-epidermal plate usually not close to a stoma but sometimes from the hyphae within the guard cells of the stoma or in neighboring epidermal cells, and rupturing the cuticle, but never emerging in a fascicle through a stoma, colourless, subcylindric or pyrimidal, tip truncate, very short, 5-10 × 2-6 μm ; conidial scars inconspicuous. Conidia colourless, subcylindric, straight or very slightly curved, broadly obtuse at the apex, slightly narrowed at the base towards the trun-cate unthickened hilum, smooth, thin walled, 2-4 septate, not constricted, 25-45 × 3-4 μm.
 
 
 
 
 
 Specimens:

Taiwan, Taichung, NCHU Campus, 8 Aug. 1984, NCHUPP-31, on Ipomoea. aquatica Forsk.

 
 
 
 Habitat: On leaves of Ipomoea acuminata (Vahl) Roem. & Schult. and I. aquatica Forsk.
 
 
 
 Distribution:

Hong Kong, Malaysia, Rep. of Sudan, Taiwan.

 
 
 
 References:

Hsieh, WH and Goh, TK. 1990; Sawada, K. 1943b.

   
   
   
 Provided:

W. H. Hsieh

 
 
 Note: null