Proposed name if/when synthesised: 'Porpolomopsis Fandango'.
fandango
/fanˈdaŋɡəʊ/
noun
noun: fandango; plural noun: fandangoes; plural noun: fandangos
1.
a lively Spanish dance for two people, typically accompanied by castanets or tambourine.
2.
an elaborate or complicated process or activity.
"the Washington inaugural fandango"
Several small groups of sporangia on a large bryophyte-covered log in Melaleuca ericifolia swamp forest.
Please note that I found this species sharing the Angophora Costata (smooth-barked apple) tree stump with Golden-scruffy (Collybia Cyptotrama asprata) - as one of the photos shows.