Meridion spp

Diatom

Meridion spp., Diatom. A microscopic freshwater alga. Individual cells have walls of silica (silicon dioxide) and remain attached to each other, forming fan-shaped or circular colonies. Several green chloroplasts are visible st x400 upwards. Redmire specimens found on an aquatic moss, Platyhypnidium riparioides, growing in a stone drinking trough in running water


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Meridion, Diatom
Fan of cells
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Meridion, Diatom
Fan of cells
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Meridion, Diatom
Diatoms in detritus
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Meridion, Diatom
Habitat

Photograph detail


Slide 1: Meridion spp., Diatom. A microscopic green alga with cell walls built from silica. Photographed at x1000, oil immersion, brightfield illumination. Collected from an aquatic moss, Platyhypnidium riparioides, growing in a stone drinking trough in running water. Near railway station, Redmire. March.


Slide 2: Meridion spp., Diatom. A microscopic green alga with cell walls built from silica. Photographed at x1000, oil immersion, phase contrast illumination. Collected from an aquatic moss, Platyhypnidium riparioides, growing in a stone drinking trough in running water. Near railway station, Redmire. March.


Slide 3: Meridion spp., Diatom. A microscopic green alga with cell walls built from silica. Seen in general moss detritus. Photographed at x400, brightfield illumination. Collected from an aquatic moss, Platyhypnidium riparioides, growing in a stone drinking trough in running water. Near railway station, Redmire. March.


Slide 4: Meridion spp., Diatom. Habitat. Collected from an aquatic moss, Platyhypnidium riparioides, growing in a stone drinking trough in running water. Near railway station, Redmire. March.