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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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Greenish on Betula leaf
Juuso Äikäs, 16-10-2020 15:02
These yellowish-greenish little ascos were growing on a fallen leaf of Betula sp. The paraphyses and hairs had nice greenish VBs that disappeared with the addition of KOH. IKI+, croziers+. The spores measured 14.3-17.5 x 1.8-2.6 microns.

This seems both macro- and microscopically fairly distinctive and interesting to me. Maybe someone knows the species?
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Hans-Otto Baral, 16-10-2020 15:47
Hans-Otto Baral
Re : Greenish on Betula leaf
This is Calycellina araneocincta. Very close to C. lachnobrachya but with yellow VBs and specific to Betula.

Both species are unsequenced as far as I know, only C. lachnobrachyoides is in GenBank. To base a distinct species solely on colour is unusual, therefore I wonder about the genetic distance between the two.
Juuso Äikäs, 16-10-2020 16:28
Re : Greenish on Betula leaf
Thanks for the info. So this time it was a Calycellina! I found Phialina lachnobrachya from our species list (apparently a synonym for C. lachnobrachya), but no araneocincta. Maybe I'll try to find more to make a sample for storage.
Hans-Otto Baral, 16-10-2020 16:39
Hans-Otto Baral
Re : Greenish on Betula leaf
yes, some authors follow Huhtinen to place the group in Phialina.