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15-01-2026 10:35

Hyphomycete ?
Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

15-01-2026 10:34

Hyphomycete ?
Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

15-01-2026 10:34

Hyphomycete ?
Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

13-01-2026 07:28

Chlorociboria glauca on indet. decorticate hardwood log - 303627368
Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 08:43

Tricladium varicosporioides on indet. decorticate stick - 303997395
Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

07-01-2026 22:22

Tatraea sp. on indet. hardwood - 303452087
Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

13-01-2026 09:10

Dasyscyphella chrysotexta on indet. decorticate hardwood - 303900282
Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 10:13

Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:14

Neodasyscypha cerina on indet decorticate log - 303463318
Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

15-01-2026 10:02

Coccomyces sp. on fallen Rhododendron leaves - 305874978
Danny Newman Danny Newman

Coccomyces sp. on fallen Rhododendron leavesPretty

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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!
  • message #49974
  • 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