Phylum:Ascomycota >> Class: Dothideomycetes >> Order: Dothideomycetes | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Passalora janseana | |||
Author: | Passalora janseana (Racib.) U. Braun, Schlechtendalia 5: 39. 2000. = Cercospora oryzae Miyake, Jour. Coll. Agric. Imp. Univ. Tokyo 2: 263. 1910. |
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Description: | Leaf spots oval to elliptic or linear, 2-10 mm long, 1-3 mm wide, pale to dark brown, with center paler than margin. Fruiting amphigenous. Stromata none or a few brown cells. Conidiophores 1-9 in a fascicle, pale to medium brown, uniform in colour, mostly irregular in width, not branched, 2-5 septate, sometimes constricted at the septa, 1-2 mildly or abruptly geniculate, rounded at the apex, 10-120 × 3-5 μm; conidial scars thickened, 0.5-1 mm wide. Conidia hyaline, cylindric to cylindro-obclavate, straight to slightly curved, 2-5 septate, rounded at the apex, obconic at the base with a small thickened hilum, 15-60 × 3-4.5 μm. | |||
Specimens: | Taiwan, Taipei, 15 July, 1920, Herb. NTU-PPE. |
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Habitat: | On leaves, leaf sheaths, pedicels and glumes of Oryza sativa L. | |||
Distribution: | Widely distributed in the tropics where rice is grown intensively. |
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References: | Hsieh, WH and Goh, TK. 1990; Braun, U. 2000. |
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Provided: | W. H. Hsieh |
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Note: | null | |||