Phylum:Ascomycota >> Class: Dothideomycetes >> Order: Dothideomycetes | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Pseudocercospora cotizensis | |||
Author: | Pseudocercospora cotizensis (M?ller & Chupp) Deighton. Mycol. Pap. 140:142 1976. Basionym: Cercospora cotizensis M?ller & Chupp, Ceiba 1:173, 1950.. |
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Description: | Leaf spots indistinct yellowish areas on the upper surface, somewhat suborbicular to irregular, 2-7 mm wide. Fruiting hypophyllous, effuse, dark olivaceous. Stromata small, filling stomatal openings, pale to medium brown. Secondary mycelium external: hyphae pale olivaceous, repent, septate, branched, 1-2.5 μm wide, arising from among the fasciculate primary conidiophores, bearing secondary conidiophores as side branches. Primary conidiophores up to 15 in a divergent fascicle, pale olivaceous brown, uniform in colour, irregular in width, multiseptate, constricted at the septa, branched, rarely geniculate, conically truncate at the apex, 15-75 × 3.5-6 μm. Secondary conidiophores similar in respect to the primary conidiophores, borne terminally and laterally from the external secondary mycelial hyphae, 0-2 septate, 7-20 × 3-5 μm Conidia subhyaline to very pale olivaceous, obclavate to cylindro-obclavate, shorter ones may be cylindric, straight to slightly curved, 3-9 septate, subobtuse at the apex, obconic or obconically truncate at the base, 20-80 × 3-5 μm. | |||
Specimens: | Taiwan, Hwalien, 20 March, 1944, in Herb. NTU-PPE, on Crotalaria verrucosa L. Taichung Hsien, Tanan, 2 Dec. 1987, NCHUPP-240, on C. pallida Ait.. |
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Habitat: | On leaves of Crotalaria spp. | |||
Distribution: | Guatemala, Guinea, Hong Kong, India, New Caledonia, Papua & New Guinea, Malaysia, Philippines, Singapore, Taiwan, Venezuela. |
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References: | Hsieh, WH and Goh, TK. 1990. Sawada, K. 1942. |
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Provided: | W. H. Hsieh |
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Note: | Cercospora crotalariae Saccardo (Syn. C. crotalariae-junceae Sawada, Taihoku Soc. Agr. and Forestry Jour. 7:27, 1942) differs from this fungus by its thickened conidial scars and hyaline acicular conidia. | |||