21-09-2017 08:27
BERNARD CLESSE
Bonjour à tous,Ci-joint ce que je pense être un
20-09-2017 11:27
Edvin Johannesen
This Hymenoscyphus (?) was found on Gymnocarpium d
10-09-2017 20:58
BERNARD CLESSE
Sur laissée de sanglier, en pessière fraîche.
13-09-2017 08:09
Ethan CrensonHello,In the Bronx, Pelham Bay Park, New York, US.
20-09-2017 13:32
Viktorie Halasu
Hello forum,last week I finally found a Smardaea b
16-09-2017 12:45
Lothar Krieglsteiner
... collected this week in Nature Reserve "Žofín
18-09-2017 23:14
Philippe LouasseBonsoir à tous, Les 9èmes Journées mycologique
12-08-2014 11:56
Zuzana Egertova
Hello, in this ascomycete everything seems to fit
18-09-2017 17:54
Rubén Martínez Gil
Hola a todos. Estoy buscando este artículo: Med
21-08-2017 01:44
Ethan CrensonIn the Green Mountains of Southern Vermont, US.
Rhytismatales on Ribes
Marja Pennanen,
15-07-2017 23:16
I collected some hyaloscyphaceae on the leaves of Ribes nigrum. On stereomicroscope I noticed something growing on the stem of a leaf. Sorry about the quality of photos, should try again tomorrow.
The apos are about 0,5-1mmx0,5 mm and very hard to see because of the dark grey colour and are propably visible only, when wet.
The spores are about 7-9x2 and asci 50-60x6-8, Iki blue.
Paraphyses are practicly not exceeding the asci and may be a bit curved, about 2 at the top.
I suppose, that this is a representative of some Rhytismatales, but found absolutely nothing fitting to these characters. Maybe someone here can help me...
Marja
Hans-Otto Baral,
16-07-2017 07:35
Re : Rhytismatales on Ribes
Hi Marja
can you exclude a Pyrenopeziza? Reminds me of P. petiolaris on Acer petioles.
Zotto
can you exclude a Pyrenopeziza? Reminds me of P. petiolaris on Acer petioles.
Zotto
Marja Pennanen,
16-07-2017 13:59
Re : Rhytismatales on Ribes
Dear Zotto,
these definitely grow under surface. They really are visible only, when wet. I took many more photos, but these seem to try to avoid to be revealed ;)
The paraphyses are curved at the top and septate and seems to exceed at least young asci.
Could this be a Hypoderma species?
Marja
these definitely grow under surface. They really are visible only, when wet. I took many more photos, but these seem to try to avoid to be revealed ;)
The paraphyses are curved at the top and septate and seems to exceed at least young asci.
Could this be a Hypoderma species?
Marja
Hans-Otto Baral,
16-07-2017 21:02
Re : Rhytismatales on Ribes
Now I see a strongly hooked paraphysis also in your first series of images which rules out my suggetsion. Sorry, the quality is too low. The paraphyses aren't multiguttulate?
Marja Pennanen,
17-07-2017 13:38
Re : Rhytismatales on Ribes
Hi Zotto,
I supposed, that there were septas in paraphyses, but they may as well be guttules. I have these drying now, so I should collect more, but have not time now. My granddaugter is going to visit us and I surely have to move many things away from her curious eyes and fingers...
Marja
I supposed, that there were septas in paraphyses, but they may as well be guttules. I have these drying now, so I should collect more, but have not time now. My granddaugter is going to visit us and I surely have to move many things away from her curious eyes and fingers...
Marja