|Species: Arcyria cinerea (Bulliard) Persoon|
|SPOROCARPS: stalked, scattered to gregarious some times united by their fused stalks and accruing in digitate clasters of 2 -20 sporangia 0.3 - 0.4 mm tall. Sporotheca ovate to cylindrical, usually tapering towards the apex, pale grey to light brown, ochraceous or sometimes yellowish brown, 0.1 - 0.8 mm in diameter.|
STALK: slender, pallid or black up to 2 mm length. Hypothallus discoid or contiguous for a group of sporangia, transparent and often not evident.
PERIDIUM: persisting as a shallow calycus in mature fruiting bodies only, with a smooth, delicately stippled, finely reticulate inner surface.
CAPILLITIUM: consisting of a network of threads 2 - 6 µm in diameter and densely covered with small blunt spines (occasionally also with cogs, bands or reticulations), firmly attached to the calyculus.
SPORES: Pale grey or light yellow in mass, colourless by transmitted light, with a few scattered warts 6 - 7µm in diameter.
DISTRIBUTION: Cosmopolitan, known from Auckland , Buller, Canterbury , Coromandel, Dunedin , Northland and Southland.NOTES: This species has two diffrent forms ovate or cylindrical and two diffrent colours grey or ochraceous.
|Grey cylindrical form.||Scale = 0.25 mm.|
|Scale = 1 mm.|
|Scale = 0.5 mm.|
|Grey ovate form.||Scale = 0.4 mm.|
|Cylindrical, ochraceous fruiting body's just as the peridium brakes up.||Scale = 0.5 mm.|
|Ovate, ochraceous fruiting body's showing the capillitium, notice the scatted spores on the substrate.||Scale = 0.7 mm.|
|Immature, ochraceous ovate fruiting body's.||Scale = 0.4 mm.|
|Spores: Grey or light yellow with a few scatted worts 6-7 µm.||Magnification = 1000x|
|Capillitium: 2-6 µm in diameter, densely covered in small blunt spines.||Magnification = 400x|
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