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20-08-2017 18:13

Mlcoch Patrik Mlcoch Patrik

Good day for everyone, I needed original descript

20-08-2017 11:04

Elisabeth Stöckli

Bonjour, Encore une espèce à glassy hair, sur c

19-08-2017 20:32

Francisco  SÃNCHEZ Francisco SÁNCHEZ

Hi.This collection of Scutellinia were collected i

16-08-2017 20:12

Thorben Hülsewig

Hi there,a few weeks ago i found this fungus on mo

18-08-2017 13:41

Elisabeth Stöckli

Bonjour,Sur tiges mortes d'Epilobium angustifolium

16-08-2017 19:20

BERNARD CLESSE BERNARD CLESSE

Bonsoir à tous,Hier j'ai trouvé, sur vieux polyp

16-08-2017 20:48

Marc Detollenaere

Dear Forum, Today I found a small sisk-shaped fru

18-08-2017 17:46

Malcolm  Greaves Malcolm Greaves

Is it normal to have such a long stalk on Tarzetta

14-08-2017 10:24

David Vaudoré David Vaudoré

Hello,does someone have this publication, please?I

16-08-2017 19:47

Andgelo Mombert

Bonsoir à tous,De belles fructifications (4 mm de

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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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  • message #49974
  • message #49974
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