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24-01-2018 19:58

Hysterioid ? growing on pyrenomycete
Ethan Crenson

In New York City, a friend found these clusters of

07-02-2018 13:02

En madera de Acacia
Castillo Joseba Castillo Joseba

me envian muestra seca de este hongo A ver que os

07-02-2018 12:58

En rama de zarza
Castillo Joseba Castillo Joseba

En zona sombria de un campo labrado parasitaba tie

05-02-2018 22:40

Chaetomium spinosum?
Marc Detollenaere Marc Detollenaere

Hello everybody,   On dung of rabbit I found tw

06-02-2018 11:49

White form of Proliferodiscus tricolor?
Gernot Friebes

Hi,on the weekend I collected some fungi on the ba

05-02-2018 18:54

fungus on larva
Thorben Hülsewig

Hi there,i found this fungus on a larva, but what

03-02-2018 21:28

Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Bernard CLESSE Bernard CLESSE

Bonsoir tout le monde,Trouvé récemment ce que je

05-02-2018 13:50

Ascobolus
Castillo Joseba Castillo Joseba

Ascobolus a identificar   ... puse  la fase inma

04-02-2018 15:45

Ionomidotis
Salvador Tello

Hola a todos.En octubre del año pasado recogí un

02-02-2018 18:11

orange discomycete from Portugal - Coprotus aurora (???)
Lothar Krieglsteiner Lothar Krieglsteiner

... found at 2017, 29.12., near Odelouca (Silves,

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Hysterioid ? growing on pyrenomycete
Ethan Crenson, 24-01-2018 19:58
In New York City, a friend found these clusters of tiny globose fruiting bodies - none larger than .2mm in diameter.  They appear to be growing on an old pyrenomycete, possibly Jackrogersella multiformis.  I thought they were reminiscent of Anteaglonium species (I encounter A. globosum and A. parvulum in New York).  However, the spores are brown didymospores, measuring about 11.8 - 12.3 by 4.5 - 5µm. Asci are about 55 - 60 by 7.5µm.  Any ideas?  I have read in Boehm et al. (2009) of the monotypic genus Actidiographium with "pigmented one-septate ascospores", but I can't find much information other than that.
Thanks in advance!
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Gernot Friebes, 24-01-2018 20:04
Re : Hysterioid ? growing on pyrenomycete
This could be Immotthia atrograna.

Best wishes,
Gernot
Ethan Crenson, 27-01-2018 01:21
Re : Hysterioid ? growing on pyrenomycete
Thank you Gernot!  I think that's it!
Andrew N. Miller, 27-01-2018 16:09
Andrew N. Miller
Re : Hysterioid ? growing on pyrenomycete
What about Immothia hypoxylon since it is growing on an old species of Hypoxylon?

Andy
Gernot Friebes, 27-01-2018 17:46
Re : Hysterioid ? growing on pyrenomycete
Immotthia hypoxylon is a synonym of I. atrograna according to Jaklitsch et al.: https://www.zobodat.at/pdf/OestZPilz_11_0093-0106.pdf

Best wishes,
Gernot
Andrew N. Miller, 27-01-2018 18:00
Andrew N. Miller
Re : Hysterioid ? growing on pyrenomycete
Ah, good to know.  Thanks!  How does anyone keep up with taxonomic names changes these days?  ;o)

Andy
Ethan Crenson, 08-02-2018 02:14
Re : Hysterioid ? growing on pyrenomycete
This past weekend in a park at the opposite end of NYC I found what looked like Immotthia atrograna.  Again, tiny clusters of black globose fruiting bodies growing on the stromata of some sort of Hypoxylon.  But this time rather than asci and brown didymospores, I found an anamorph with light brown unseptate conidia with (usually) two oil droplets, measuring (6) 7.5 - 9 (12) by 4 - 4.5?m.  But this is just the anamorph of I. atrograna, is it not?
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Gernot Friebes, 08-02-2018 08:21
Re : Hysterioid ? growing on pyrenomycete
Yes, it looks very much like it.

Best wishes,
Gernot