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26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

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Anamorph on Tilia
Gernot Friebes, 24-02-2026 11:01
Hi,

found on a branch of Tilia, with conidia measuring approx. 2.8-3.7 x 1.9-2.0. Thank you for any ideas.

Best wishes,
Gernot
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  • message #84646
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Paul Cannon, 24-02-2026 11:18
Re : Anamorph on Tilia
I think this is Bloxamia truncata (probably not rare but certainly under-recorded). They seem to be anamosphs of Calycina-like fungi.

Best wishes

Paul
Hans-Otto Baral, 24-02-2026 11:18
Hans-Otto Baral
Re : Anamorph on Tilia
This is a Bloxamia and the anamorph of Calycina discedens / C. claroflava.
Paul Cannon, 24-02-2026 11:25
Re : Anamorph on Tilia
Wu & Diao 2023 combined Calycina discedens into Bloxamia, describing the anamorph with smaller conidia than those of C. truncata, but all of their collections came from China so may not be conspecific with the type.
Gernot Friebes, 24-02-2026 13:18
Re : Anamorph on Tilia
Thank you, Paul and Zotto!

Do you know if C. discedens and C. claroflava are synonyms? Wu & Diao (2023) say that they are not, citing papers by Karunarathna et al. (2021) and Hosoya & Zhao (2016). It would not be surprising if they were different since C. discedens was described from Brazil and C. claroflava from Great Britain. Can we therefore assume that my anamorph is C. claroflava?

Best wishes,
Gernot
Hans-Otto Baral, 24-02-2026 15:47
Hans-Otto Baral
Re : Anamorph on Tilia
Available sequences fall in two groups at least, with about 5% ITS distance, speaking for at least two species.

C. discedens is +/ indistinguishable from claroflava, having inamyloid asci and 1-septate spores. European claroflava (= Helotium citrinicolor Crouan, the type of which I have examined) has asci without croziers, but I have seen that also in the Brazilian type of Ombrophila microsperma Hennings, which Dumont identified as B. discedens. I am not sure if a difference exists in ascus and spore size.
Gernot Friebes, 24-02-2026 15:58
Re : Anamorph on Tilia
Thanks again, Zotto.

Best wishes,
Gernot