 Phylum：Anamorphic fungi >> Class： Anamorphic fungi >> Order： Anamorphic fungi |
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 BCRC Number： |
NO BCRC Number! | |||
| Scientific Name： |
Pseudocercospora actinidiae | |||
| Author： |
Pseudocercospora actinidiae Deighton, Mycol. Pap. 140: 10. 1976. |
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| Description： |
Leaf spots at first none, later brown necrotic areas without definite margin develop on the upper surface and these may expand into suborbicular to irregular spots up to I cm wide, becoming grey brown in the center. Fruiting hypophyllous, very numerous, varying from small punctiform specks to effuse irregularly orbicular masses of conidiophores, dark and floccose. Hypophyllous stromata absent. Secondary mycelium well developed, pale olivaceous to pale brown, septate, hyphae often exhibit anastomosis which appear as an "H" letter, forming a tangled mass amongst the trichomes with the conidiophores which are borne terminally and as lateral branches, 2-5 μm wide. Conidiophores primarily fasciculate, emerging from the stomata. There are secondary hyphae which arise from the fascicle, bearing secondary conidiophores, ramifying and making up the external mycelium. The co-nidiophores are pale olivaceous in color, variable in shape, some are clavate or as short denticles, sometimes slightly geniculate, 2-40 × 2-4 μm; conidial scars inconspicuous. Conidia pale to moderate olivaceous brown, plainly 3-8 septate, usually cylindric, sometimes obclavato-cylindric, straight to slightly curved, rounded at the apex and obconically truncate at the base, hilum unthickened, 25-85 × 5-7 μm. | |||
| Specimens： |
Taiwan, Nantou Hsien, Hsitou, 3 Jan. 1985, NCHUPP-140. |
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| Habitat： |
On leaves of Actinidia callosa Lindl. var. formosana Finet & Gagnep. | |||
| Distribution： |
Mainland China, Taiwan. |
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| References： |
Goh, TK and Hsieh, WH. 1987. |
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| Provided： |
W. H. Hsieh |
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| Note： |
null | |||