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17-07-2025 11:55

Una para ID 833
Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Nectria
Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

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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!