Arcyria cf glauca (white form?)
thanks to @gim-siew_tan for the microscope photo
Description: Scattered stalked sporangia 1.5 mm high. Sporotheca subglobose, 0.7 mm diameter, purplish brown patches on ochraceous yellow background. Peridium double with dark brown patches over lighter coloured background, amorphous particles in patches and in stalk; dehiscence ‘petaloid’ or circumscissile in some sporangia leaving a distinct cup. Stalk ⅔–¾ total height, subulate, longitudinally furrowed, shiny, red brown. Hypothallus like an extension of stalk, contiguous under sporangia. Capillitium - some threads attached to inner surface of peridium, ochraceous in mass, pale brown by transmitted light, simple with faint spiral bands, 3 µm diameter, free ends rounded, some ending in a long 7 µm spine. Spores mustard yellow in mass, pale by transmitted light, minutely warted (spinulose?), 7–8 µm. Notes: matches description except for conspicuous hypothallus. Two collections only; both from the same substrate collected a week apart.
Substrate: Bark of living Eucalyptus obliqua.
Found growing at the base of Pseudopanax arboreus and crown fern.
Tips have pinkish color.
Spotted by @lancslass