Phylum:Ascomycota >> Class: Dothideomycetes >> Order: Dothideomycetes | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Cercospora piperis-betle | |||
Author: | Cercospora piperis-betle Sawada & Katsuki. Spec. Publ. Coll. Agric. nat. Taiwan. Univ. 8:224 1959. |
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Description: | Leaf spots circular, yellowish brown to grayish white with dark brown margin, 1-7 mm wide. Fruiting amphigenous. Stromata a few brown cells or up to 40 μm wide. Conidiophores up to 15 in a fascicle, pale olivaceous brown, paler at the apex, 2-5 septate, not branched, geniculate, 30-80 × 4-5 μm, conidial scars thickened. Conidia hyaline, acicular to obclavate, straight to mildly curved, indistinctly multiseptate, subacute to subobtuse at the apex, subtruncate to obconically truncate at the base with a thickened hilum, 30-90 × 2-3 μm. | |||
Specimens: | Taiwan, Taichung, 15 March, 1920, Herb. NTU-PPE. |
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Habitat: | On leaves of Piper betle L. | |||
Distribution: | Taiwan. |
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References: | Hsieh, WH and Goh, TK. 1990. |
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Provided: | W. H. Hsieh |
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Note: | This fungus differs from three other species on Piper spp. namely C. artanthes P. Hennings (Hedwigia 48:18, 1909) C. piperata Asthana & Mahmud (Mag. Agric. Coil. Nagpur, 21:58, 1947) and Pseudocercospora piperis (Patouillard) Deighton (1976) by its thickened conidial scars and hyaline acicular conidia, and by the distinct circular leaf spots it causes on the host. | |||