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27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

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

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Old problem? Herpotrichia herpotrichoides
Björn Wergen, 26-03-2011 22:53
Björn WergenHi again,

before I take new photos of the "mysterious" Diaporthales I had a new fungus on Rubus fruticosus, I think it is Herpotrichia herpotrichoides, the only thing I did not see were the 3-septating mature spores. All in all the finding is comparable with the description of H. herpotrichoides in BARR (1984, Mycotaxon 20 (1)). But perhaps you can help me with a different opinion ;)

Fruitbody is a sphaerical Pseudothecia partly embedded into the cortex, black, with black hyphoid structures.
Spores 19-23,5x5-7 µm, hyaline, with 2-7 vacuoles, constantly with a central septation, smooth, endings pointed. Asci 100-130x10-15 µm, with 8 spores in biseriate arrangement, short stalked, bitunicate. Paraphyses hyaline, septating, some branched.

On Rubus fruticosus.

regards and thanks,
Kazuya
  • message #14916
Björn Wergen, 26-03-2011 22:53
Björn Wergen
Re:Old problem? Herpotrichia herpotrichoides
micro
  • message #14917
Björn Wergen, 26-03-2011 22:53
Björn Wergen
Re:Old problem? Herpotrichia herpotrichoides
micro2
  • message #14918
Björn Wergen, 26-03-2011 22:56
Björn Wergen
Re:Old problem? Herpotrichia herpotrichoides
additional notes: the spores are surrounded by a hyaline gel sheath, especially by spores in asci.
Jacques Fournier, 27-03-2011 10:31
Jacques Fournier
Re:Old problem? Herpotrichia herpotrichoides
Hi Kazuya,
I don't think your fungus is H. herpotrichoides which is different in being superficial, associated with a conspicuous tomentum, with fusiform ascospores. Moreover, its ascomata are big, up to 650 µm dim.
I guess your fungus is smaller, partly immersed, and its spores are in the size range of Massarina rubi, which is common on Rubus. You should test this possibility.
Cheers,
Jacques
Bernard Declercq, 27-03-2011 12:39
Bernard Declercq
Re:Old problem? Herpotrichia herpotrichoides
Hi,

Massarina rubi (Fuckel) Sacc. was recently recombined as Lophiotrema rubi (Fuckel) Yin. Zhang, C.L. Schoch & K.D. Hyde (2009).

Regards,
Bernard
Björn Wergen, 27-03-2011 22:38
Björn Wergen
Re:Old problem? Herpotrichia herpotrichoides
Hi Jacques, Hi Bernard,

thank you for the help, I think I was a bit stupid ^^ Lophiotrema rubi seems to be obvious for this find.

regards,
Kazuya