Phylum:Ascomycota >> Class: Dothideomycetes >> Order: Dothideomycetes | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Pseudocercospora cephalanthi | |||
Author: | Pseudocercospora cephalanthi Goh & Hsieh. Cercospora and similar fungi from Taiwan. Maw Chang Book Company, Taipei, Taiwan, 1990. |
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Description: | Leaf spots suborbicular to irregular, 2-10 mm wide, reddish brown center, dark brown margin, slightly zonate. Fruiting chiefly epiphyllous, appearing as very minute black pustules on the spots. Secondary mycelium absent. Stromata up to 65 μm wide, dark brown. Conidiophores densely fasciculate, up to 35 in a fascicle, pale olivaceous to pale olivaceous brown, uniform in colour, cylindric, more or less uniform in width, substraight to sinuous, 1-5 septate, sometimes slightly constricted at the septa, branched, mildly geniculate or sometimes with one abrupt geniculation, conically truncate or subtruncate at the apex, 20-80 × 3-4 μm; conidial scars unthickened. Conidia subhyaline to very pale olivaceous, cylindric to cylindro-obclavate, straight to mildly curved, 3-10 septate, sometimes slightly constricted at the septa, obtuse at the apex, obconically truncate at the base, 30-100 × 2.5- 4 μm; hilum unthickened. | |||
Specimens: | Taiwan, Taipei, 26 Oct. 1931, holotype in Herb. NTU-PPE, labelled Cercospora cephalanthi Sawada |
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Habitat: | On leaves of Cephalanthus naucicoides DC. | |||
Distribution: | Taiwan. |
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References: | null |
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Provided: | W. H. Hsieh |
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Note: | Chupp in his monograph (1954) gives Cercospora perniciosa Heald & Wolfe (Mycologia 3:19, 1911) as a synonym of Cercospora cephalanthi Ellis & Keller-man (Bul. Torrey Bot. Club 11:121, 1884) for which the conidia exhibit catenulation occasionally. The name given by Sawada for this fungus on his herbarium is Cercospora cephalanthi Sawada, and it is a Pseudocercospora. | |||