Hymenoscyphys on Typha - Forum ASCOFrance

18-03-2026 13:09

Orbilia on Celtis occidentalis

Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Pyréno sur branche morte de chêne

Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

18-03-2026 17:22

Literature search

Katarina Pastircakova

Hi there,I'm looking for the following literature:

19-03-2026 10:56

Sporodochial anamorph on Populus with angular, pigmented conidia - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10505643

27-02-2026 11:21

Nemania diffusa complex

Yannick Mourgues

Hi to all. Here is a specie that can may be relat

18-03-2026 18:42

Arthothelium sp.

Gonzalez Garcia Marta

I have collected some lyre-shaped apothecia on the

27-11-2025 15:41

Hysteriales (Mytilinidion mytilinellum??) on Larix cone, with too? big spores - Denmark

Thomas Læssøe

Spores brownish, typically 4-celled; 26.8 x 2.4;

18-03-2026 11:52

Gnomonioid on petiole of Acer pseudoplatanus with 3-septate ascospores, Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10493688

11-03-2026 17:36

Help for Genus and Species ID

Michel Hairaud

Bonjour, Je cherche des indices pour cette réc

17-03-2026 10:40

Geopora sumneriana

Martine Vandeplanque

Bonjour à tous.Chaque année en mars ou avril, il

« < 1 2 3 4 5 > »

Hymenoscyphys on Typha

Juuso Äikäs, 19-09-2022 07:40

These rather small (up to 0.8 mm) beige Hymenoscyphus fruitbodies were growing on a dead Typha stem at the shore of a pond.

Croziers present, IKI+, paraphyses full of tiny VBs. Spores naviculiform, measuring 18.7 - 19.7 × 4.2 - 5 µm.

Any idea what the species is?

Hans-Otto Baral, 19-09-2022 09:39

Re : Hymenoscyphys on Typha

Although there is no doubt I would appreciate a photo of an immature dead ascus in IKI to see the Hymenoscyphus-type of ring. The excipulum is probably of prismatic cells?

The spores appear to be almost non-scutuloid. My guess is Hymenoscyphus macroguttatus.

Torsten Richter has a Hymenoscyphus typhae nom. prov. but that has short stalks and wider spores with often 1-2 septa inside the living asci. It is in the varicosporoides folder of Cudoniella (HB 10115). Excipulum alsmost globose, so a totally different species.

Juuso Äikäs, 19-09-2022 11:56

Re : Hymenoscyphys on Typha

Thanks again! I checked your H. macroguttatus folder, and that seems to fit pretty well. Yeah, these stalks are fairly long and there were no septas in the spores, but it's good to be aware of that H. typhae species. The excipulum seems to be of textura prismatica.

Hans-Otto Baral, 19-09-2022 12:47

Re : Hymenoscyphys on Typha

The ring looks a bit thick, anyway I have little doubt. Yes, prismatic.

Accès membres

Forum AscoFrance