20-12-2025 15:47
Mirek GrycHi.These grew on pine wood that was heavily covere
18-12-2025 21:17
Pol DebaenstThe identification took me to Byssonectria deformi
15-12-2025 07:09
Danny Newman
indet. Rutstroemiaceae sp. on unk. fallen leavesMc
19-12-2025 10:10
Patrice TANCHAUDBonjour, récolte réalisée en milieu dunaire, a
18-12-2025 17:23
Bruno Coué
Bonjour,je serais heureux d'avoir votre avis sur c
18-12-2025 18:07
Margot en Geert VullingsThese plumes were found on rotten wood.They strong
17-12-2025 18:35
Michel Hairaud
Bonjour à tous/Hi to everyone I am passing along
15-12-2025 15:48
Danny Newman
Melanospora cf. lagenaria on old, rotting, fallen
Small resin asco?
Mirek Gryc,
20-12-2025 10:49
Hi.
„I doubt it is possible to identify this tiny fungus with such limited data, but I have decided to post a few photos anyway. Unfortunately, I am unable to determine whether croziers are present or not. I observed a very faint apical reaction to iodine. No hairs were found. Marginal cells are essentially absent; if any exist, they are so hyaline that they are impossible to observe with my equipment.
Ascomata diameter: 0.1–0.2 mm. Substrate: old spruce resin.
I hope someone here has encountered something similar before."
Ascomata diameter: 0.1–0.2 mm. Substrate: old spruce resin.
I hope someone here has encountered something similar before."
Spores 3.8 - 4.5 × 1.9 - 2.05 (2.1) µm
Regards
Mirek
Mirek
Mirek Gryc,
20-12-2025 11:02
Re : Small resin asco?
Lugol
Hans-Otto Baral,
20-12-2025 17:53
Re : Small resin asco?
Hard to tell. A Ciliolarina perhaps? Does it have rough small hairs?
Mirek Gryc,
20-12-2025 18:26
Re : Small resin asco?
Dear Zotto,
The elements of this ascoma are so strongly hyaline that observation is extremely difficult. As you can see, the size is also a challenge. I tried staining, but I currently don't have any Congo Red. I couldn't see anything resembling hairs. There are several dozen fruitbodies on this resin; I have preserved them and will try again once I obtain some staining reagent. One thing I am certain of: this species is strictly resinicolous. I haven't seen a single fruitbody outside of the resin.
I have already searched your drive for the genus you suggested, but I couldn't find anything similar. The fruitbodies are mature, so these dimensions are definitely representative of the species. The spores immediately reminded me of Hyphodiscus hymeniophilus, but then again, nothing else fits that species. As soon as I saw them, I knew they would be problematic because I've never seen anything like them before.
Could it be some resinicolous Cistella?
Best regards,
Mirek
The elements of this ascoma are so strongly hyaline that observation is extremely difficult. As you can see, the size is also a challenge. I tried staining, but I currently don't have any Congo Red. I couldn't see anything resembling hairs. There are several dozen fruitbodies on this resin; I have preserved them and will try again once I obtain some staining reagent. One thing I am certain of: this species is strictly resinicolous. I haven't seen a single fruitbody outside of the resin.
I have already searched your drive for the genus you suggested, but I couldn't find anything similar. The fruitbodies are mature, so these dimensions are definitely representative of the species. The spores immediately reminded me of Hyphodiscus hymeniophilus, but then again, nothing else fits that species. As soon as I saw them, I knew they would be problematic because I've never seen anything like them before.
Could it be some resinicolous Cistella?
Best regards,
Mirek