GES6

Growing from soil. Paperbark (Melaleuca quinquenervia) dominated forest.

KOH red/black; UV basal mycelium reactive (KOH also reactive); odor earthy; taste indistinct; size 4-5cm wide.

Notes: large specimen easily turning into blackish-brown spores.

Peridium of immature fruitbodies staining stronlgy purple, long expansive rhizomorphs present, odor was mild, becoming foetid throughout the day.
Fruits 1.2-2.5 cm. fruiting around rotten Ohia, M. polymorpha, with Strawberry guava close by.

On fallen wood in Guava, Eucalyptus dominant forest, but other trees nearby.
Caps rugulose/pleated, with minute reddish fibrils especially towards disc.
Odor = Mild
Taste = mild, becoming unpleasant
KOH - Neg.
UV - Neg.

Basidia 4-sterigmate. Spores ellipsoid to lemoniform, inequilateral in side view, pronounced hilar appendage, hyaline, inamyloid.

Spore Measurements:

7-10.5µm x 4-5µm (x=7.8µm x 4.2µm, m=20, s=1)

9×4

8×4

7×4

8.5×4

7×4

7.5×4.5

8×4

10.5×5

7×4

8.5×4.5

7.5×4

8×4

7×4

8×4

7×4.5

7.5×4.5

7.5×4

7×4

7.5×4

7.5×5

In high-elevation Quercus forest in the Talamanca mountains.

Collected for the 2012 Organization for Tropical Studies “Fungi and Fungus-Like Organisms” Course, lead by Drs. Andy Miller, Priscila Chaverri, Greg Mueller, Carlos Rojas and Julietta Carranza.

BDC-0115-23

Found in a muddy ravine growing in compacted clay and moss. Ohia, Cheirodendron, and Kalia (Elaeocarpus bifidus) in the area.

KOH not tested (possibly novel); UV reactive; odor indistinct; taste not tested (possibly novel); cap 3mm-1.5cm; stipe 1cm-1.5cm.

Notes: Cap hygrophanous with small projections on the tip on some specimens. Decurrent to subdecurrent gills, cream to yellow (pale). Stipe opaque yellow. Ohia roots nearby. Possibly Hygrocybe puaena.

On Falcateria or African tulip.
Strawberry guava and Eucalyptus nearby.
UV= Neg.
KOH = Black
Individual fruits spanning up to 10cm when resupinate. Pileate/Radial growths spanning 5mm-6cm.
Pores appxt. 6-9 per mm.

Maybe Collybiopsis subpruinosa.
IN Eucalyptus, Melaleuca, Straw. Guava habitat.
Odor mild to faintly pleasant.
Taste mild, slowly becoming unpleasant.
KOH = Neg.
UV = Neg, but faint color in mycelial base.
Finely pruinose stipes along the whole length.

BDC-0095-23

Growing from horse dung in grass (Axonopus compressus, Paspalum conjugatum).

KOH no reaction; UV no reaction; odor anise-like; taste sour/farinaceous; cap 1-2cm; height 3cm-14cm.

Notes: Gill edges white, mottled. Cap with bloom. Longitudinally striated stipe that spirals.

GES10

Growing in soil.

KOH not reactive; UV egg reactive (orange); odor very bad like feces and death; taste not tested; size 4 cm wide x 7.5 cm height.

Microscopic work by @jackjohnsonn below:
From a quick look into it, the margins of difference between descriptions of C. archeri and A. rubra are slight. C. archeri is described as having minutely shorter spores (one half a micron), and sphaerocysts of up to 5um smaller than those of A. rubra. That being said, the microscopy is consistent with C. archeri on both accounts.

Spores cylindric, hyaline, sometimes with guttules.
(4.5) 4.8 - 6 (6.8) × (1.6) 1.7 - 2.1 (2.2) µm
Q = (2.1) 2.7 - 3.1 (3.5) ; N = 30
Me = 5.5 × 1.9 µm ; Qe = 2.9
Sphaerocysts
15 - 36.4
Me = 25 um ; N = 25

Micro sources I compared to
https://www.mushroomexpert.com/clathrus_archeri.html
https://ultimate-mushroom.com/poisonous/185-aseroe-rubra.html

Just over a year ago we had a record of a Clathrus from Auckland that started an interesting discussion ...
http://inaturalist.nz/observations/1554070
We collectively decided there might be a new species in Auckland, common on wood chips, that was neither Aseroe rubra or Clathrus archeri, but had features of both. Specifically it has a long stalk and bifid arms like Aseroe, but big like Clathrus and with the gleba along the arms rather than the centre, also like Clathrus. In some collections the tips of the arms are fused, even appearing somewhat clathrate like Clathrus ruber. Recently we sequenced a number of these Auckland collections, collected by the late Ross Beever together with typical Aseroe rubra and typical Clathrus archeri. This record is the typical Clathrus archeri. The sequences indicate the Auckland species is Clathrus archeri, as Tom May originally suggested, and it is very variable (if we trust the sequences to indicate species). The only consistent difference is the position of the gleba which is central in Asero rubra and not in the middle in Clathrus archeri.
The collection photographed here has more or less the same ITS /LSU/ATP6 sequence as all these quite different looking Auckland collections ...
https://scd.landcareresearch.co.nz/Specimen/PDD%20100846
https://scd.landcareresearch.co.nz/Specimen/PDD%20100847
https://scd.landcareresearch.co.nz/Specimen/PDD%20100630
https://scd.landcareresearch.co.nz/Specimen/PDD%20100848

I'll trust the sequence data and call all these C. archeri.

The data we have now suggests Aseroe rubra may have an identity issue, with some sequence variability in what looks like typical Aseroe rubra.

New name for G. versicolor, which is described from Sri Lanka.
On Roots of upturned large Falcateria falcata, the trunk of which was appxt. 5 feet in diamete.
Fruitbodies large and expansive, andwhere from 5cm wide to a meter. spines a vibrant yellow, irpicoid to rounded, easily bent but not fragile. Fruitbodies soft with a cushiony texture. A pleasant fungoid odor, taste and texture, all of which were reminiscent of Boletus edulis. White flesh becomes greenish when cut. KOH on spines is brown, KOH on cap is red orange. UV negative.
Same material as Humphrey's observation here.
https://www.inaturalist.org/observations/190369241
Interesting to note per the expertise of local naturalist Humphrey - These roots usually holds a fruiting of a Ganoderma sp., but this year Gyrodontium was fruiting instead.