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

Cercospora canescens Ellis & Martin. Amer. Nat. 16:1003 1882.

 Description: Leaf spots suborbicular to irregular, pale brown, tan or dingy grey center, with a reddish brown to ferruginous margin, 3-15 mm wide. Fruiting amphigenous, but more abundant on lower surface, sometimes also present on stems, cotyledon, and dying pods in effuse black to grey patches. Stromata small. Conidiophores densely fasciculate, pale to medium dark brown, fairly uniform in colour and width, multiseptate, geniculate, rarely branched, truncate at the apex, 20-200 × 3-6.5 μm, conidial scars conspicuously thickened, 2-4 μm wide. Conidia hyaline, acicular, straight to curved, indistinctly multiseptate, acute at the apex, truncate at the base with a thickened hilum, 25-300 × 2.5-5.5 μm.

Taiwan, Taichung, NCHU Campus, 12 Aug. 1984, NCHUPP-39, on Phaseolus radiantus L. var. aurea Prain.

 Habitat: On leaves, stems, cotyledon and pods of many different leguminous plants such as Arachis, Cajanus, Canavalia, Cassia, Crotalaria, Cyamopsis, Desmodium, Dolichos, Glycine, Lablab, Lathyrus, Phaseolus, Pisum, Pueraria, Vigna, and Voatldzeia etc.

Common in the tropics and subtropics.


Hsieh, WH and Goh, TK. 1990.


W. H. Hsieh

 Note: This fungus has been reported in Taiwan on Dolichos lablab L., Glycine max (L.) Merr., Vigna radiata (L.) R. Wilczek (Phaseolus radiatus (L.) Wilcz var. typicus Prain). Vigna sinetisis (L.) Endl. ex Hassk. and V. sinensis (L.) Endl. var. catiang Nakai.