BioImages: The Virtual Field-Guide (UK)
Pleospora allii (Rabenh.) Ces. & De Not., 1863 (an ascomycete)
| Date: | 13 June 2007 (Date may be unnatural as specimen was reared, grown or otherwise kept in captivity) |
| Location: | West Cornwall, England |
| Voucher: | 13/06/2007[K] (Please quote this in any queries about this record) |
| State: | Imperfect stage |
| Record Summary: | Stemphylium state on dead lower leaves spurrey after keeping in fridge for a week. |
| Associated organism: | on dead leaf of Spegularia |
| Identification Notes: | Stemphylium state. Conidia: 55-85/13-23µm, brown, verruculose, cylindric or slightly broader below, muriform, usually constricted at 3 major septa; apex rounded, sometimes with small pale or hyaline, oblique protruberance. Conidiophore: cylindric, pale grey-brown, septate, apex dark banded, swollen, collapsing to form a cup after conidium discharged, often swollen and/or dark banded below. Upper leaves were infected with Albugo lepigoni, the sporangia of which contaminated the microscope preps. |
Images etc
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Colony - magnified | 500 by 309 pixels | ||
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Colony - magnified | 500 by 260 pixels | ||
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Infected dead leaf - close-up - enlarged | 500 by 453 pixels | ||
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Conidia - magnified - equatorial view | 500 by 398 pixels | ||
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Conidia - magnified - equatorial view | 500 by 333 pixels | ||
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Conidia - magnified - surface view | 500 by 396 pixels | ||
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Conidia - magnified - surface view | 500 by 333 pixels | ||
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Conidia - magnified | 500 by 349 pixels | ||
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Conidia - magnified | 500 by 310 pixels | ||
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Conidia - magnified | 500 by 395 pixels | ||
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Conidia - magnified | 500 by 325 pixels | ||
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Conidiophores - magnified | 500 by 347 pixels | ||
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Conidiophores - magnified | 500 by 461 pixels | ||
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Conidiophores - magnified | 500 by 342 pixels | ||
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Conidiophores and conidia - magnified | 500 by 333 pixels | ||
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Conidium on conidiophore - magnified | 265 by 500 pixels |
