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17-11-2009 22:22

Peziza avec latex
Pablo Chacón Pablo Chacón

Bonne nuit, Voir si vous m'avez élaguée appor

07-12-2015 14:17

Una Peziza a latice giallo-verdastro con croziers
Zugna Marino Zugna Marino

Buon giorno a tutti, ad un primo momento, non ess

25-11-2012 20:32

Otidea o Peziza?
Bometon Javier Bometon Javier

Ascomas cupoliformes abiertos lateralmente, himeni

25-01-2026 16:08

Geoglossum
Malcolm Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

27-01-2026 11:43

DNA match
Malcolm Greaves Malcolm Greaves

Is anyone with experience of DNA testing able to t

26-01-2026 11:49

Anamorph on Cytisus
Margot en Geert Vullings

We found this possible anamorph on a dead Cytisus

25-01-2026 23:23

Delitschia/Lojkania? on wood
Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Anamorph on an olive tree
Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

23-01-2026 21:50

Looking for a paper please
Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Lichenicolous fungus on Protoparmeliopsis muralis
Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

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Strange fungus on Phragmites stems
Enrique Rubio, 25-05-2022 12:06
Enrique RubioHi forum.
These tiny, gregarious, gregarious, blackish, conical or pyriform ascomata up to 200 µm long, grew on Phragmites australis stems. The ascomata are glabrous, but the necks of the ascomata are fimbriated by long hyaline hairs but more shorter brownish hairs surround the ostiole. I see no paraphyses and the asci are very peculiar, cylindrical, rather long, sometimes more than 100 µm long, without reaction in Melzer's reagent, with numerous small, ellipsoidal, hyaline ascospores. I don't know their discharge mechanism and am therefore I'm very confused about the placement of this fungus, which I don't exclude that it could be lichenized since numerous green algae surround the ascomata.
Do you have any idea that could help me?

 

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Thomas Læssøe, 25-05-2022 17:03
Re : Strange fungus on Phragmites stems
see this one: https://svampe.databasen.org/observations/10075277

Enrique Rubio, 25-05-2022 17:30
Enrique Rubio
Re : Strange fungus on Phragmites stems
I can see that what I thought were asci are in fact firmly cemented conidia!
Thanks a lot, Thomas.
A nice fungus!
Eduard Osieck, 27-05-2022 15:32
Re : Strange fungus on Phragmites stems
Anisomeridium polypori occurs mainly on wood bark: “rough bark of broad-leaved trees, especially Sambucus and Ulmus, sometimes overgrowing bryophytes; also on shaded rock, especially damp pebbles, and bone” (Orange 2013). A similar species has larger conidia (A. robustus). I don’t know whether there are any species of these lichenised species that occur on monocots. I am puzzling with an Anisomeridium on Juncus with long cirrhi filled with conidia. There exists a world key of Anisomeridium but it doesn’t appear to be available on Internet (Harris 1995, More Florida Lichens, including a 10 ¢ tour of the pyrenolichens. New York: privately published). Possibly it gives some indications about the occurrence on monocots.
Eduard
Enrique Rubio, 27-05-2022 17:34
Enrique Rubio
Re : Strange fungus on Phragmites stems
Thank you, Eduard
I will try to get that publication.
Thanks again
Chris Yeates, 27-05-2022 21:46
Chris Yeates
Re : Strange fungus on Phragmites stems
Paul Cannon points out on this thread http://www.ascofrance.com/search_forum/69018

that Anisomeridium has a wide substrate range - as you see here it was on a fern . . .

Chris