I've gone through the 140 ish pages for rank: Kingdom Fungi, Costa Rica, Needs ID. Think I've found all there is from it.
https://www.inaturalist.org/observations/identify?iconic_taxa=Fungi&taxon_id=47170&hrank=kingdom&lrank=kingdom&place_id=6924
These ones seem to match the previous observation of mature specimens, if you zoom in to see details. One shows pinkish colouration on the gills and yellow on the stem flesh which could be handy to ID.
Observation 99085226 Image copyright: @tinas1
Observation 129128932 Image copyright: @cicciocostarica
These immature ones may be the same:
https://www.inaturalist.org/observations/26749924
Nothing much more of interest beyond that but I'll include the things that caught my eye along the way anyway.
This mature one looks similar with some cap scales but I'm not sure it is the same:
https://www.inaturalist.org/observations/99134557
https://www.inaturalist.org/observations/99136034
I think this is something else but the broken pieces of cap in the blurry image resemble the area around the other one:
https://www.inaturalist.org/observations/133969335
I think these immature ones are something else but they look superficially similar in the blurry photos so I am not certain what they are and it would be nice to rule them out for sure:
https://www.inaturalist.org/observations/135918185
https://www.inaturalist.org/observations/135918440
EDIT: I think they are likely the immature form of this observation and may be a Xylaria species:
https://www.inaturalist.org/observations/124807254
Something white and furry on a leaf, unrelated I'm sure and possibly from insects or spiders but including in case anyone can identify it so similar could be ruled out in future searches in case they are found on wood.
https://www.inaturalist.org/observations/7773947