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07-01-2026 10:24

Pezicula sp. on indet. hardwood - 303870019
Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

07-01-2026 10:05

cf. Chaetospermum on Xylaria - 303631739
Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

06-01-2026 20:54

Gymnoascus ?
Thierry Blondelle Thierry Blondelle

Bonjour à tous et meilleurs voeux pour cette nouv

02-01-2026 17:43

Spores with a sheath
MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

04-01-2026 17:45

Pithya cupressina with large apothecia looking like P. vulgaris.
Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

02-01-2026 22:48

Calycina languida ?
éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

Thysanophora?
William Slosse William Slosse

Good evening everyone,First of all, my best wishes

03-01-2026 13:08

Lichenicolous fungus on Myriolecis spec.
Niek Schrier

Hi all,We found groups of perithecia on a Lecanora

03-01-2026 15:36

Nomenclature
éric ROMERO éric ROMERO

Bonjour, Pouvez-vous me dire quel est le nom à p

29-12-2025 17:44

Lamprospora ? laquelle ?
Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

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Ciboria-like apothecium on deciduous stick
Stefan Jakobsson, 11-08-2022 00:45
On a thin deciduous stick (Salix/Alnus/Betula) on moist sand I found a light brownish grey apothecium 4 mm diam. The excipulum is t. globulosa and the medulla t. intricata. The spores are (15.2)15.7-18.0(19.6) × (4.5)4.7-5.4(5.7) µm with many medium sized guttules. The asci are 128-152 × 7.1-11.9 µm and the praphyses are filled with low refractive guttules.

I have difficulties finding even a genus; it has much in common with Ciboria but I don't think the spores fit in.


I would appreciate opinions on this one.


Stefan

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  • message #73663
  • message #73663
  • message #73663
Hans-Otto Baral, 11-08-2022 07:50
Hans-Otto Baral
Re : Ciboria-like apothecium on decoduous stick
Yes, clearly sclerotiniaceous. Although very well documented, I have no clear idea. Spore guttulation together with globulosa could point to Rutstroemia bolaris, but that is only known from Carpinus and its spores are much larger and the VBs in the paraphyses brownish and elongated.  Perhaps you can clarify the substrate? Alnus and Betula have very characteristic perforations of the vessels (in radial section).
Stefan Jakobsson, 11-08-2022 23:41
Re : Ciboria-like apothecium on deciduous stick
Thank you! I think Salix can be excluded.
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Hans-Otto Baral, 12-08-2022 09:10
Hans-Otto Baral
Re : Ciboria-like apothecium on deciduous stick
Yes! And Betula vs. Alnus is difficult. Perhaps it works with a cross section but I was repeatedly in doubt.