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17-10-2025 18:45

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025.

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

15-10-2025 16:39

Edvin Johannesen Edvin Johannesen

These tiny (0.2-0.6 mm), white, pulvinate apotheci

03-10-2025 13:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

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Tiny black asco on wood
Byrain, 17-11-2012 13:23
Can anyone identify this tiny black fungus on woodchips?  Found in California, USA.

There were 8 spores per ascus, spores with 8-10 septations per spore, one was seen with 7, most were with 10.?
The spore range was (37) 38 – 53 (57) x 7 – 8 (9) ??m, the average spore from 20 measurements was 43.9 × 7.65 ??.
The green hyphae (Paraphysis??) were amyloid, the spores and asci ddn't react.  And the micro pics are mounted in KOH.


More micro pics and info can be found at mushroom observer, here is a link - http://mushroomobserver.org/117014?q=r0co?


Thanks for any help you can provide. :)?

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DirkW, 17-11-2012 13:43
DirkW
Re : Tiny black asco on wood
hi byrain,

this is patellaria atra, very common on all kinds of substrates.
we found some on rope ;)

best

dirk
Byrain, 17-11-2012 14:00
Re : Tiny black asco on wood
Thank you, do you know where I could find a description for this species?  And do you know what the current name is?  Mycobank and index fungorum claim it is Tephromela atra , but that appears to be a rather different lichen, I'm very exeperienced with ascos and am a bit confused. :)

Edit:  Or rather, you mean atrata instead of atra?
Edit2: I've found descriptions! :D

Here are some:

http://bit.ly/XkXLIY
http://bit.ly/QkD5Or ?
Luc Bailly, 17-11-2012 22:51
Luc Bailly
Re : Tiny black asco on wood
Hi Byrain,
On MycoBank, it's Patellaria atrata:

Classification and associated taxa

Current name : Patellaria atrata (Hedw.) Fr., 2:160, 1822[MB#398671]


Classification : 1. Fungi


2. Ascomycota


3. Pezizomycotina


4. Dothideomycetes


5. Patellariales


6. Patellariaceae


7. Patellaria


Basionym : Lichen atratus Hedw. :61, t. 21A, 1789 [MB#154587]


Obligate or homotypic synonyms : 1. Lecanidion atratum (Hedw.) Endl. :46, 1830 [MB#181476]


2. Lichen atratus Hedw. :61, t. 21A, 1789 [MB#154587]


3. Peziza patellaria Pers. :670, 1801 [MB#148847]


Facultative or heterotypic synonyms : Lichen atratus Hedw. :61, t. 21A, 1789 [MB#154587]


?


Apparently it's world-wide spread, but not always on wood. Here's a photo from my samle, coming from Château de Moha, province de Liège, Belgium, on stems of Verbascum (or eventually Inula).


 


There's also a little description in Ellis & Ellis.


 


Cheers - Luc BAILLY.

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Byrain, 18-11-2012 01:00
Re : Tiny black asco on wood
Hi Luc

Thanks for the info, I was mostly confused by how patellaria atra is an old name for a lichen, till I noticed there was also a P. atrata. :)  Also, the Ellis & Elli?s books look great, I wish I knew about them sooner!
DirkW, 18-11-2012 17:29
DirkW
Re : Tiny black asco on wood
hi brian, i'm so sorry, it was just a type-mistake .. surely atrata.
best

dirk