Phylum:Ascomycota >> Class: Dothideomycetes >> Order: Dothideomycetes | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Pseudocercospora clematidis | |||
Author: | Pseudocercospora clematidis Goh & Hsieh. Trans. mycol. Soc. R. 0. C. 4(2): l-23 1989. |
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Description: | Leaf spots angular to irregular, vein-limited, dark brown with a yellow halo, 1-5 mm wide. Fruiting hypophyllous, visible as whitish effuse patches on corresponding lower leaf surface. Secondary mycelium absent. Stromata small. Conidiophores up to 20 in a fascicle, pale yellowish, short, 0-2 septate, occasionally once geniculate, tip rounded to subtruncate, 8-25 × 3-5 μm, conidial scars inconspicuous. Conidia subhyaline, narrowly obclavate to filiform, mostly curved to undulate, 5-12 septate, tip subacute to subobtuse, base obconic to obconically truncate, 40-100 × 2-3 μm, hilum unthickened and inconspicuous. | |||
Specimens: | Taiwan, Taichung, 9 May, 1919, Herb. NTU-PPE. Taichung Hsien, Kukuan, 27 Oct. 1985, holotype, NCHUPP-189 (isotype in IMI Herbarium No: 312079). |
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Habitat: | On leaves of Clematis gouriana Roxb. | |||
Distribution: | Taiwan. |
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References: | Sawada, K. 1944. |
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Provided: | W. H. Hsieh |
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Note: | This fungus differs from other Pseudocercospora or Cercospora-like fungi in the host family Ranunculaceae by its subhyaline, curved conidia which are narrowly obdavate to almost filiform. Cercospora filiformis Davis (Wise. Acad. Trans. 18:266, 1915) on Anemone patens L. also has its conidia filiform in shape but it differs from this fungus by its well developed stromata (40-125 μm wide). | |||