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25-02-2019 12:03

Asco rosâtre sur branche de hêtre
Bernard CLESSE Bernard CLESSE

Je pense déjà avoir observé au microscope cet a

25-02-2019 12:28

Coleroa robertiani (?) sur feuilles de Geranium robertianum
Bernard CLESSE Bernard CLESSE

Je suppose que c'est bien ça mais un avis expéri

23-02-2019 23:17

Ombrophila sp
Salvador Tello

Hola.Recogí estos hongos en agosto del año pasad

23-02-2019 18:01

Pyreno on Acer platanoides
Per Marstad Per Marstad

I have found this to-day, in Norway.Asci 125x17.Sp

16-02-2019 17:02

Big spores
Per Marstad Per Marstad

I found this on desiduous wood, in Norway.Diameter

24-02-2019 01:38

Geopyxis delectans, amyloidity?
Viktorie Halasu Viktorie Halasu

Hello forum, I have a question about Starbäck's

22-02-2019 14:03

Orbilia
Castillo Joseba Castillo Joseba

Me mandan desde Galicia muestra de esta especie, Â

19-02-2019 13:43

Orbilia rouge
Patrice TANCHAUD

Sur Abies. Spores 7-9 x 0,8-1,2 µm. Peut-être ve

22-02-2019 14:25

En tallo de herbacea
Castillo Joseba Castillo Joseba

me mandan el material seco desde GaliciaRecolectad

21-02-2019 11:23

Pequeños discos amarillos
Castillo Joseba Castillo Joseba

Me mandan el material seco desde Galicia,  ha sid

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another black bitunicate asco
Ethan Crenson, 05-03-2019 05:59
Found on the same branch on which fruited the Trichopeziza (?) in my previous posting (56603).  They are a cluster of tiny black fruiting bodies smaller than 1mm in diameter, rubbery (not carbonaceous) with a simple ostiole.  Asci 72-89 x 12.5-13.5µm, IKI- and bitunicate.  Spores light yellow to hyaline, 3-septate, some swollen above the central septation.  They measure 17-20 x 6-6.8µm. I did notice one part spore (picture 5), like the missing nose cone of rocket. Any ideas what this could be.

Thanks in advance,

Ethan
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Chris Yeates, 05-03-2019 16:41
Chris Yeates
Re : another black bitunicate asco
Looks very much like Melanomma pulvis-pyrius; can't think of anything else.

Regards

Chris


Ethan Crenson, 06-03-2019 20:05
Re : another black bitunicate asco
Chris,

Thank you for the suggestion.  I'm reading a description of M. pulvis-pyrius in Fungi of Switzerland.  The microscopic features seem to align fairly well with my collection.  But it is described as being "without a distinct pore".  Mine have a simple pore.  Then again, I have also seen certain photos on the web claiming to show M. pulvis-pyrius with what looks like a distinct pore. 

Do you know of any good literature I could acquire to read up on M. pulvis-pyrius?

Ethan
Chris Yeates, 06-03-2019 21:29
Chris Yeates
Re : another black bitunicate asco
The attached from Munk's Danish Pyrenomycetes. Note he refers to a "porus" and shows one in the section. I suspect the pores in your images are rather large following spore discharge and subsequent abrasion. I'm sure that 's what you have - it's a very common and widestread species.

regards

Chris
Ethan Crenson, 06-03-2019 22:33
Re : another black bitunicate asco
Many thanks!