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31-05-2020 19:49

Mirek Gryc

Hi.A colleague from Norway brought one ascocarp of

29-05-2020 11:28

Maria Plekkenpol

Hello, on cowdung I saw these whitish asco's. Foll

30-05-2020 13:52

Andrés Valverde Valera Andrés Valverde Valera

Bonjour,Je ne sais pas si ça peut être la phase

19-04-2015 20:20

Enrique Rubio Enrique Rubio

Hi again Could you help me with this paper? NANN

31-05-2020 07:26

Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

30-05-2020 20:01

Juuso Äikäs

I pulled off some thick bark from a Pinus sylvestr

28-05-2020 21:28

Marek Capoun

Hello everybody,I need help with a determination o

29-05-2020 20:14

Maren Kamke Maren Kamke

Good evening,A pyrenomycetes-species on rosa sp.,

28-05-2020 11:45

Hardware Tony Hardware Tony

Found this hairless orange operculate fungi larges

29-05-2020 14:08

Louis DENY

Bonjour forum,Dans un endroit humide, sur feuille

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Ascobolus on raccoon droppings
Ethan Crenson, 20-05-2019 22:07
In New York City on what I believe are raccoon droppings.  This appears to be Ascobolus sp.  The small orange cups are fringed at the margin and appear to be sessile.  Asci 137-187 x 13.8-17.5µm. IKI-  Spores, when mature, purple brown with longitudinal anastomosing striations 16-17.5 x 8.5-9µm.  Paraphyses occasionally branched, septate.  Excipulum textura globulosa/angularis.  Perhaps the apothecia were not sufficiently ripe, but is it possible to know what this is?  Thank you in advance.
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Jacky Launoy, 21-05-2019 09:35
Re : Ascobolus on raccoon droppings
It looks like Ascobolus michaudii
Ethan Crenson, 22-05-2019 21:32
Re : Ascobolus on raccoon droppings
Thank you, Jacky.  I am having some difficulty understanding the finer points differentiating A. lignatilis, foliicola, furfuraceus, michaudii.  In another post on the topic on this forum François Valade comments that the brown walled excipulum cells (in michaudii & lignatilis) vs. hyaline or yellow cells (in foliicola)--but I'm not sure I'm translating these concepts properly. At any rate I have made more images, including more mature apothecia, mature spores and excipulum.  Spores at maturity seem to be quite reliably 16-18 x 9µm, brown, with some branching grooves--even some that connect laterally. Q=1.93  The apothecia only reach 3-4 mm in diameter.  Perhaps there is more detail here that could confirm A. michaud?
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