 Phylum：Ascomycota >> Class： Ascomycetes >> Order： Pleosporales |
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 BCRC Number： |
NO BCRC Number! | |||
| Scientific Name： |
Astrosphaeriella macrospora | |||
| Author： |
Astrosphaeriella macrospora C.Y. Chen and H.W. Hsieh, Bot. Bull. Acad. Sin. 45: 173, 2004. |
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| Description： |
Ascomata scattered, immersed, raising the overlying host tissue to form hemispherical pustules, 800-1000 μm wide, 360-420 μm high, apex papillate or forming a neck up to 200 μm long, base flattened. Peridium at sides merging with the host tissue to form a shield-like clypeus, poor developed at base, cells at rim vertical oriented and palisade-like. Asci clavate, 170-220 × 20-24 μm, short to long stalked, stalk up to 60 μm long, (4-7)8-spored. Pseudoparaphyses embedded in gelatinous matrix, frequently branched and anastomosing, 1-1.5 μm wide. Ascospores fusiform, 56-90 × 7-10 μm, broadest at the portion above the largely median constricted septum, 1-5-septate, brown, usually turning colorless at the slightly swollen ends, striate, 3 to 4 ascospores fasciculate in the upper part of ascus, turning uniseriate below. | |||
| Specimens： |
Nantou Hsien: Pihu, Wushe, on Miscanthus, 11 Feb. 1988, A. Sivanesan (TNM F15219, holotype; NCHUPP s383, isotype); ibid. 14 Oct. 2002, C.Y. Chen (NCHUPP c0816). |
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| Habitat： |
On culms of Miscanthus sp. | |||
| Distribution： |
Taiwan |
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| References： |
Chen, CY and Hsieh, WH. 2004a. |
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| Provided： |
C. Y. Chen |
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| Note： |
This new species is similar to A. africana in the shape of ascospores, but in this species ascospores are significantly large and become 5-septate at maturity. Therefore they can be easily separable. | |||