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28-03-2026 17:41

Mollisia sur Molinia
Louis DENY

Bonjour forum,Mollisia trouvée sur tige de Molini

30-03-2026 12:03

Dumontinia on Ficaria?
William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

30-03-2026 09:53

Lachnum mollissinum ?
Yanick BOULANGER

BonjourVoici des petites fructifications poilues s

30-03-2026 12:18

Demande d'aide
Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

27-03-2026 10:47

Stictis cf. friabilis and literature request
Ã…ge Oterhals

I have tentatively identified this Stictis to S. f

28-03-2026 07:55

White Orbilia with allantoid spores
Marc Detollenaere Marc Detollenaere

Hello everybody,Yesterday I found a number of whit

26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ã…ke Widgren Ã…ke Widgren

Hello,I found this one in October last year, on r

27-03-2026 15:23

Trichopezizella barbata?
Gernot Friebes

Hi,this Trichopezizella deviates from typical T. b

27-03-2026 15:08

Coelomycete on Cirsium
Gernot Friebes

Hi,I'm looking for help with this coelomycete on C

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Berkleasmium conglobatum (?)
Ethan Crenson, 11-08-2017 17:19
Collected in Vermont in Green Mountain National Forest on a bare branch.  They are tiny green fuzzy cushions less than 1mm in diameter.   I had the idea that they might be Berkleasmium conglobatum because of a similar collection I had seen on Eric Boehm's (now defunct) web site.   But a paper "A synopsis of the genus Berkleasmium..." (Boonsom Bussabant et. al.)  describes B. conglobatum conidiospores as deep fuscous to opaque.  The conidiospores I am seeing are fragile, olive green and translucent.  They are 38-54 x 18-20um and muriform.  Any input would be helpful, thanks!
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Hans-Otto Baral, 11-08-2017 19:14
Hans-Otto Baral
Re : Berkleasmium conglobatum (?)
I have seen a similar fungus on dead wood of Acacia in arid Australia, but the conidia were max. 30 µm long. I noticed in this species a strong ionomidotic reaction of the conidia in KOH (orange stain extruding in the medium). Did you test that?

Zotto
Jason Karakehian, 11-08-2017 19:50
Jason Karakehian
Re : Berkleasmium conglobatum (?)
Hi Ethan, I posted this species to our Facebook group in June and I just sent you a message with the link to that post. Here is a link to my post in Mycoportal:

http://mycoportal.org/portal/collections/individual/index.php?occid=4622329

I think your determination is correct. The conidia seem to darken in age to nearly opaque black. The farinaceous or flaky condition of the surface of the conidia is consistent with my observations. Also, you will see nearly black sporodochia in a collection and also these yellow-green sporodochia. These are younger sporodochia that have had the tops rubbed away and you see this yellow tissue (hyphae and conidiogenous cells) beneath.  Best - Jason