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26-03-2011 22:53

Björn Wergen Björn Wergen

Hi again, before I take new photos of the "myst

26-03-2011 21:38

Patrice TANCHAUD

Bonsoir à tous, bonsoir Zotto, l'an dernier, j

24-03-2011 22:57

Michel RIMBAUD

Bonjour, Trouvé sur feuilles morte de Buxus à M

24-03-2011 21:37

Björn Wergen Björn Wergen

Hello, today I have found a Diaporthales (I thi

24-03-2011 09:33

roland rousseaux

Rencontré le 14.03.2011 sur rameaux morts de Jugl

23-03-2011 21:45

Jean Pierre Dechaume Jean Pierre Dechaume

Bien malheureux de ne pas arriver au genre... Cha

23-03-2011 12:15

Alain GARDIENNET Alain GARDIENNET

Bonjour, J'ai fait cette clé (pièce jointe), s

21-03-2011 21:26

Amy Rossman

Dear All, Thank you so much for responding abou

21-03-2011 14:04

Menéndez Juan Luis

Dear all, I know this is a web about ascomycete

21-03-2011 10:25

roland rousseaux

En examinant des rameaux morts d'une haie de Forsy

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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