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Stalked Asco on decidous wood
Maren Kamke,
09-05-2013 10:52
Hello,I need your help with a strange asco, which I found on a twig.
The fruitbody is 450 µm high, 350 µm wide at the top. The stalk measures 200x80 µm. The spores are of an unusual color somewhat greengrey with 1 to 2 septa. They are 13-17 x 4-5 µm. Asci are IKL negative 85-88 x 6-7 µm.
Regards Maren
Hans-Otto Baral,
09-05-2013 10:59
Re : Stalked Asco on decidous wood
Obviously a Mycocalicaceae. I suggest Stenocybe, of which I have photos which closely resemble this.
Zotto
Zotto
Björn Wergen,
09-05-2013 11:03
Re : Stalked Asco on decidous wood
Hi Maren,
there is also Phaeocalicium with similar characteristics (there is a species here on ascofrance, P. populinum).
Very interesting.
regards,
björn
there is also Phaeocalicium with similar characteristics (there is a species here on ascofrance, P. populinum).
Very interesting.
regards,
björn
Maren Kamke,
09-05-2013 18:21
Re : Stalked Asco on decidous wood
Hi Zotto and Björn,
really thats the question Stenocybe or Phaeocalicium?. I found a key to these species http://www.crustose.net/wp-content/uploads/2012/03/Peterson-20120311-Key-For-All-Calicioid-Spp-wIn-Temperate-NoAm-Genera.pdf
I would name it Stenocybe pullatula.
But I'm not familiar with the term "excipulum consisting of 2-3 layers of
sclerotized, periclinally arranged hyphae", can you translate this to German ;).
The substrate is probably alnus, because there were no populus.
I add som pictures of the excipulum.
Regards Maren
really thats the question Stenocybe or Phaeocalicium?. I found a key to these species http://www.crustose.net/wp-content/uploads/2012/03/Peterson-20120311-Key-For-All-Calicioid-Spp-wIn-Temperate-NoAm-Genera.pdf
I would name it Stenocybe pullatula.
But I'm not familiar with the term "excipulum consisting of 2-3 layers of
sclerotized, periclinally arranged hyphae", can you translate this to German ;).
The substrate is probably alnus, because there were no populus.
I add som pictures of the excipulum.
Regards Maren
Hans-Otto Baral,
09-05-2013 18:30
Re : Stalked Asco on decidous wood
I fear I am unable. And I am not sure whether the term periclinal is applicable in fungi, as it describes 3-dimensional cell division in cormophytes (plants), that do not occur in fungi.
Zotto
Zotto
Marja Pennanen,
09-05-2013 22:17
Re : Stalked Asco on decidous wood
Hi,
Stenocybe pullatula is very common on dead alnus branches at least here at spring time.
When spores are mature there may be even 3 septas.
Marja
Stenocybe pullatula is very common on dead alnus branches at least here at spring time.
When spores are mature there may be even 3 septas.
Marja