Phylum:Ascomycota >> Class: Dothideomycetes >>  Order: Dothideomycetes 
 BCRC Number NO BCRC Number!  
 Scientific Name: Cercospora apios

Cercospora apios Goh & Hsieh. Bot. Bull. Acad. Sinica 30(2):117-118 1989.

 Description: Leaf spots amphigenous, irregularly angular, vein-limited, 1-4 mm wide, often confluent, dark brown at first, later become whitish at center with a narrow brown margin. Fruiting amphigenous. Secondary mycelium absent. Stromata none or up to 40 μm wide, dark brown. Conidiophores 2-35 in a fascicle, emerging from the stomata, yellowish brown to pale pinkish brown, paler towards the apex, uniform in width or slightly attenuated, straight or geniculate, 1-4 septate, rarely branched, 40-120 × 4-5 μm; conidial scars medium size (2-3 μm wide), conspicuously thickened. Conidia hyaline, acicular, substraight to curved, multiseptate, acute to subobtuse at the apex, truncate at the base with a thickened hilum, 50-120 × 3-5 μm.

Taiwan, Taichung Hsien, Lishan, 31 July, 1987, holotype, NCHUPP-224.

 Habitat: On leaves of Apios taiwanianus Hosok.





W. H. Hsieh

 Note: This fungus differs from Cercospora canescens Ellis & Martin (Amer. nat. 16:1003, 1882) and Cercospora apii Fres. (Fresenius, 1863) by its comparatively narrower and paler conidiophores. No other Cercospora or other Cercospora-like fungi reported on Apios.