Caps otherwise
In this sub-group you find those cap-on-stem fungi that are (1) not in the list of exclusions given in the group overview and (2) not in the other sub-groups of the group.
In Podoserpula the caps appear in tiers, all the caps growing from the one stem. In Leotia and Vibrissea the caps are irregularly rounded. Fruitbodies are yellow to yellow-brown (Leotia) or white to creamy or very pale brown (Vibrissea).
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Discussion
Heino
wrote:
3 Aug 2016
The fruiting bodies grew on a dead shrub base that was within a heap of aged prunings. The globose to somewhat conical heads were up to about 2 mm in diameter, but usually smaller. As you can see in Photo 2, those heads sit atop short, narrow stems. Photo 3 shows an enlarged view of part of one of the bristly fruiting bodies of Photo 1. I have given the date as 10 February, when I first saw this fungus in that heap. However, very few were present at that time. In an attempt to produce more specimens, I kept that shrub base damp and in a plastic tub. Over several weeks I harvested some tens of fruiting bodies. All the material is lodged at the Australian National Herbarium, Canberra, as collection HL 6091. The macro and micro features seem closest to those of Physalacria bambusae (recorded once from Australia) but I stop short of claiming it is definitely that species.
Physalacria aff. bambusae
Heino
wrote:
17 Jun 2016
I suspect it is a species of Physalacria. It is a genus that I had long wanted to see and a few months ago found three of the same 1-2mm white balls on some wood in a old pile of woody prunings in my back yard. At first I thought it was a myxomycete new to me, but not so. I kept that bit of wood moist in a sealed tub and over some weeks harvested a good lot of specimens. They are rarely more than 2mm in diameter, are white to creamy and are hollow balls on short stalks. The spore-producing basidia line the outer surface but there are also abundant cystidia, which show macroscopically as very short bristles. With a macro lens they may photograph fairly well and one of your photos seems to show an abundance of bristles. You might want to see if you can add a crop showing the bristles. Some time in the next week or so I will have a go at identifying my specimens.
Physalacria
