 Phylum：Zygomycota >> Class： Zygomycetes >> Order： Mucorales |
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 BCRC Number： |
NO BCRC Number! | |||
| Scientific Name： |
Backusella circina | |||
| Author： |
Backusella circina Ellis & Hesseltine, Mycologia 61: 863. 1969. |
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| Description： |
Colony growing rapidly on SMA, 9 cm in diam in 4 days at 24°C; turf dense, white at first, near light olive-gray when old in age. Sporangiophores sharply recurved distally at first, then erect, soon reaching the lid of a Petri dish (2 cm height) , 7.5-12.5 μm in diam, usually simple, bearing terminal sporangia and giving rise laterally at varying intervals to many pedicellate unispored sporangiola. Primary sporangium globose to subglobose, 55-70 μm in diam, gray; wall hyaline, minutely spinulose, diffluent; columella hemispherical, 10-32.5 × 10-27.5 μm, hyaline, with basal collar. Sporangiospores in terminal sporangia subglobose to ovoid, 7.5-10 μm in diam, hyaline to pale yellow. Sporangiolar pedicels slightly to strongly recurved, thin, simple or sympodially branched, forming 1-8 stalked unispored sporangiola. Unispored sporangiola abundant, globose, 7.0-20 μm in diam, brown; wall spinulose, spines ca. 2 μm long, detached by breaking of the pedicel, with a portion of the pedicel remaining on the spore wall. Heterothallic. | |||
| Specimens： |
FS0405 , from Soil, Fushan, Ilan, March, 1999. |
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| Habitat： |
null | |||
| Distribution： |
India; Japan; Taiwan; U.S.A. |
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| References： |
Benny, GL. and Benjamin, RK. 1975; Ho, HM. 2000. |
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| Provided： |
H. M. Ho |
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| Note： |
According to Benny (1975), the closely related species B. lamprospora (Lendner) Benny and Benjamin. has multispored sporangiola. | |||