Phylum:Ascomycota >> Class: Ascomycetes >> Order: Dothideales | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Ophiobolus miscanthi | |||
Author: | Ophiobolus miscanthi A. Sivanesan & W. H. Hsieh, Mycol. Res. 93: 344-346. 1989. |
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Description: | Ascomata scattered to densely aggregated, immersed, becoming erumpent, globose to subglobose, 600-750 μm high including the beak, 725-750 μm wide, covered with brown mycelia. Beak short, 150-250 μm high, 275-300 μm wide. The ascomatal wall 35-56 μm thick is composed of pseudoparenchymatous cells forming a textura angularis. Pseudoparaphyses filiform, septate, colourless, mucose, diffluent. Asci numerous, stalked, bitunicate, 8-spored, 112-165 × 12-13 μm. Ascospores filiform, 6-11-(mostly 7-) transversely septate, straight to slightly curved, pale brown to brown, smooth, not or slightly constricted at some septa, 70-90 × 3-4.5 μm, without mucilaginous sheath, terminal mucilaginous appendages of characteristic nodose swellings. | |||
Specimens: | Taiwan, Kaoshiung County, Liyuan, 29, Jan. 1988, holotype A. Sivanesan 311, IMI 322693. |
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Habitat: | On stems of Miscanthus floridulus (Labill.) Warb. Ex Schum. & Laut.. | |||
Distribution: | Taiwan. |
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References: | Müller, E. 1952; Shoemaker, RA. 1976. |
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Provided: | W. H. Hsieh |
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Note: | This species is very close to Ophiobolus. mayorii E. Müller (1952) in ascospore sep-tation and size. The ascospores in O. mayorii are 8-10-septate, 70-85 × 2.5-3 μm with the 4th to 6th cell often slightly nodose. It can be easily separated from other Ophiobolus species (Müller, 1952; Shoemaker, 1976) by its ascospore size by the number of septa in the ascospores. | |||