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13-10-2011 09:44

Björn Wergen Björn Wergen

Hello again,this finding seems to be an inopercula

09-10-2011 23:29

Stip Helleman Stip Helleman

Bonjour à tous,Has anyone heard or know about a A

14-10-2011 12:47

PASCAL DUBOC

Bonjourje cherche à identifier ces petites péziz

10-10-2011 16:45

Jacques Fournier Jacques Fournier

Bonjour,j'ai été attiré par ce disco qui sur le

04-10-2011 13:16

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Avez-vous connaissances d'autres a

06-10-2011 22:05

Yannick Mourgues Yannick Mourgues

Bonsoir à tous.Première interrogation parmi tout

06-10-2011 22:31

Yannick Mourgues Yannick Mourgues

Re.Ce genre fait-il parti de la famille des Sarcos

06-10-2011 22:10

Yannick Mourgues Yannick Mourgues

Re.Deuxième interrogation du moment : Le genre Di

06-10-2011 10:36

Gernot Friebes

Hi,I am looking for the following article: "Notes

05-10-2011 20:59

Alex Akulov Alex Akulov

Dear FriendsCan you help me to identify one discom

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unknown Helotiales?
Björn Wergen, 13-10-2011 09:44
Björn WergenHello again,

this finding seems to be an inoperculate contrary to my mysterious Pezizales, which is perhaps somewhere between Boubovia and Sphaerosporella. It grows on wood of hardwood (Quercus?) and forms brownish-ochraceous fruitbodies which are 2-5 mm broad. There is no stem.
The microscopic features are:
Spores fusiform, very variable in size and form, with a thin gelatinous sheath, hyaline, permanently with 2 bigger oil droplets, 14-20x4-7µm. Asci with 8 spores, short stalked, without croziers, 110-130x8-10µm. Paraphyses with strongly refractive guttules, especially in the apical part, septate and branched. No hairs. Ascus apex in Lugol blue. 

If more information is needed, tell me, I have the finding right here in a plastic box ;)

lg kazyua
  • message #16424
  • message #16424
  • message #16424
Hans-Otto Baral, 13-10-2011 12:12
Hans-Otto Baral
Re : unknown Helotiales?
Hi Kazyua :-)

very fine presentation! Clearly a Hymenoscyphus s.l. (Phaeohelotium). I assume you are sure there is not long stalk hidden in the substrate (that is sometimes overlooked).

The spores do not look very variable. Are you sure with the absent croziers? I would be surprised but this is very important. I thought it could be H. epiphyllus or H. monticola, but I am not very happy with my idea.

A section of the margin and flanks would perhaps also help

Zotto
Björn Wergen, 13-10-2011 15:12
Björn Wergen
Re : unknown Helotiales?
Hi Zotto,

I tried to find some croziers but I did not have success with it. I also thought about a Hymenoscyphus, the size and shape remembered me on H. epiphyllus, but I know this specimen more yellowish...

I will try to make some more photos if there will be the time for it.

regards
kazuya
Hans-Otto Baral, 18-10-2011 19:41
Hans-Otto Baral
Re : unknown Helotiales?
Hi Kazuya

when looking again at your fungus I am sure that it is Hymenoscyphus fulvidulus. This species is somewhat variable, from brownish to grey, but the features all fit including absence of croziers and strongly refractive VBs in the paraphyses.

Zotto
Björn Wergen, 18-10-2011 19:48
Björn Wergen
Re : unknown Helotiales?
Hi Zotto,

many thanks. I didn't check this species again, so I am sorry that I cannot give you some more details.

lg kazuya