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23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

20-01-2026 17:49

Hardware Tony Hardware Tony

I offer this collection as a possibility only as e

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

03-01-2026 15:36

éric ROMERO éric ROMERO

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

19-01-2026 12:01

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

17-01-2026 19:35

Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

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Could this be Bacidina chloroticula in a mat of algae/lichens?
François Bartholomeeusen, 05-10-2025 16:41
Dear forum members,

On a mat of dried algae/lichens, loosely attached to a herbeceous stem, I found several very small, dirty gray fruiting bodies (diameter 155 to 220 µm), sitting on the substrate.
Asci: club-shaped, thick-walled, 27 x 6.5 µm; reddish-brown in Meltzer and Baral's solution, blue-black in Lugol's solution;
Spore: needle-shaped, stretched, (21.4) 23.6 - 27.2 (27.5) × (1.4) 1.7 - 2.1 µm, no septa, only in IKI 2 septa;
Paraphyses and base asci difficult to observe;
Conidia: filiform, curved, without septa, Me = 31.5 × 1.4 µm (measured with curvature)
Textura: globulosa incrassato-imbuta
Using the key in the publication listed below, I arrive at Bacidina chloroticula.
However, my knowledge of algae/lichens is insufficient to be certain of the identification. Can anyone help me? Many thanks in advance.


François Bartholomeeusen


Ekman, S. (2023) Four new and two resurrected species of Bacidina from Sweden, with notes and a preliminary key to the known Scandinavian species. Nordic Journal of Botany


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