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22-10-2017 11:37

lowen roz

Hypomyces leotiarum Fayod 1885 is the Sepedonium (

22-10-2017 10:33

Elisabeth Stöckli

Bonjour,  Je cherche l'article suivant: H. Schü

20-10-2017 22:50

Thorben Hülsewig

Hi there,i found this Anamorph fungus on a death s

19-10-2017 21:33

Yatsiuk Iryna Yatsiuk Iryna

Dear all,I have found this Orbilia in CWU herbariu

20-10-2017 18:07

Pintos Angel Pintos Angel

hello;anybody has....?Apiospora sinensis K.D. Hyde

19-10-2017 21:36

Yannick Mourgues Yannick Mourgues

Bonoir.Est-ce qu'il existe une clé de ce genre ?

19-10-2017 17:20

Garcia Susana

Hola,Los apotecios eran muy pequeños, el mayor me

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

15-02-2010 17:18

Jean-Claude Malaval

Je suis allé vers Fenestella vestita. La majorit

19-10-2017 00:27

Yannick Mourgues Yannick Mourgues

Bonsoir.Je cherche à savoir si son site web sur l

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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
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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