Species: Physarum cinereumGo Back
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Description:
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SPORANGIA: sessile,subglobose, or pulvinate, heaped, crowded, or scattered, often forming simple or branched plasmodiocarps, 0.3 to 0.5 mm. broad, cinereous, more or less warted or veined with white.

PERIDIUM: single, thin, densely coated or flecked with lime.

COLUMELLA: absent.

PERIDIUM: wall membranous, with included clusters of white lime granules, often limeless and iridescent.

CAPILLITIUM: abundant of branching hyaline threads, with numerous, rounded or angular, white limeknots, varying in size, sometimes consisting of a Badhamia-like network with few hyaline threads.

 
SPORES: Spores brownish lilac, almost smooth or spinulose, 7-10 µm diam..

PLASMODIUM:
Water/white or yellow.
ECOLOGY: On dead leaves and ground debris.

DISTRIBUTION:
Cosmopolitan, known from Northland, Auckland, Coromandel, Waikato, Bay of Plenty, Taranaki, Taupo, Wanganui, Wellington, Hawkes Bay, Wairarapa, Nelson, Marlborough, Gisborne, Canterbury, Southland and Dunedin.
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Macro images:
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Physarum cinereumScale bar
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 Scale = 0.7 mm.
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Micro images: 
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Physarum cinereumScale bar 
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 Scale = 0.7 mm.
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Physarum cinereumScale bar 
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 Scale = 1.2 mm.
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Physarum cinereumScale bar 
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 Scale = 0.7 mm.
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Physarum cinereumScale bar 
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Plasmodium: 
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Physarum cinereum 
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Spores:Magnification = 1000x
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