Observations by sarahlloyd

Widely scattered solitary or small groups of stalked or sessile sporangia on the bark of standing dead Bedfordia salicina.
Sporotheca more or less spherical, white except for the base, which is limeless and iridescent, 0.4-0.7 mm diameter. Small columella. Capillitium white angular nodes connected by threads. Spores warted, 11-13 microns.
Similar to PH corticola (PH. pseudocolumellatum, plate 272 Poulain et al.)

Scattered light brown stalked sporangia to 3 mm tall. Small remnant of the peridium at the top of the stalk.
Columella reaches to near the top of the sporotheca; capillitium perpendicular to columella with free ends. Spores minutely spinulose, 8-9 microns.
Resembles photo Comatricha rubens in Poulain et al, plate 508, but spore size is different.

Sessile crowded sporangia 1-1.5 mm diameter found on dead eucalypt leaf. Peridium double, off white, outer layer egg-shell like, separate inner layer membranous. Columella flattened, shiny, clay-coloured, Capillitium white in mass, hyaline by transmitted light, roughened. Spores dark brown in mass, brown by tl, warted with warts forming more or less reticulate pattern, 10-11 microns.

Black Sugarloaf, Birralee (big tree track).
Habitat: wet eucalypt forest. Substrate: decorticated wood of large eucalypt stump. Description: Several groups of crowded stalked sporangia 1.5 mm high. Sporotheca sub-globose, ochraceous yellow, 0.6–0.9 mm diameter. Stalk: cylindrical, light to dark brown, 0.3–0.4 mm long with cysts. Hypothallus: membranous, yellow brown. Peridium: membranous in upper third, persisting in the lower part as a shallow or deep calyculus; dehiscence irregular. Capillitium: free unbranched elaters, ochraceous yellow (darker than spores) with smooth spiral bands, 6–7 µm diameter tapering to long slender tips. Spores: ochraceous yellow in mass, pale by transmitted light, faintly warted, 11–12 µm.

Habitat: wet eucalypt forest. Substrate: dead Clematis aristata. Description: small scattered groups of stalked globose to ovate, sporangia to 1.2 mm tall. Sporotheca globose to ovate, 0.6–0.9 mm diameter, salmon pink. Stalk: 0.4–0.5 mm long, i.e. slightly less then ½ length of sporangia, reddish brown, shiny, wider and with reticulate fibres at base. Hypothallus: conspicuous, red–yellowish brown, discoid under solitary sporangia, continuous under groups Peridium: slight iridescence in newly formed sporangia, fugacious. Columella exceeds length of sporotheca, reddish by transmitted light, longitudinally striate. Capillitium sparse, attached along length of columella, 2 µm with thickenings. Spores salmon pink in mass, pale by transmitted light. Spiny with groups of darker spines, 9–10 µm. Notes A distinctive species first observed in May 2014 on dead Clematis aristata.
Only found on dead C. aristata.

Collected from leaf litter on 'big tree' log. Stalk 1 mm; sporotheca 0.5 mm.
Capillitial tips resemble M. martinii, but spores are more like M. cornea (Poulain et al #433 & 434). Sequencing by D. Leontyev confirmed Macbrideola.