Species: Dictydiaethalium plumbeum (Schum.)Rostaf.Go Back
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Description:
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AETHALIUM: pulvinate, smooth, flattened, 1 to 10 cm. across, 0.5 to 1 mm. thick, olivaceous or ochraceous, areolated with the convex apices of the sporangia, usually surrounded by a white, membranous hypothallus; sporangia cylindrical, angled by mutual pressure, 0.5 to 1 mm. high, 0.2 mm. broad.

PERIDIUM: ochraceous or yellow, persistent, and forming a flat or dome-shaped cap at the apex, sometimes dark with superficial deposits of refuse matter, continued down to the basal membrane in four to six straight threads, evanescent between the threads.
 
SPORES: Ochraceous or yellow in mass, pale yellow by transmitted light, spinulose, 9-12µm in diameter.

PLASMODIUM:
Rose red.
HABITAT: Decaying wood.

DISTRIBUTION: Cosmopolitan, known from Auckland, Bay of Plenty, South Canterbury and Dunedin.
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Macro images:
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Dictydiaethalium plumbeumScale bar 
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 Scale = 3.3 mm.
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Dictydiaethalium plumbeumScale bar 
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  Scale = 3 mm.
Dictydiaethalium plumbeumScale bar 
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This is avery immature fruiting body a little of the pink plasmodium can still be seen. Scale = 3 mm.
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