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28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

06-03-2026 17:51

William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

06-03-2026 09:41

Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 19:29

William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

05-03-2026 16:30

François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

03-03-2026 20:34

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

02-03-2026 22:07

Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

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Pilobolus on dung
Juuso Äikäs, 01-11-2022 19:30
This Pilobolus species was growing on dung of some animal. This isn't really an ascomycete, but there have been previous posts about this genus, so I thought It would be appropriate to add this finding here.

There appeared to be some crystals in the lower part of of the stem, although I'm not certain it belongs to this fungus.

Spores:

(5.9) 6.4 - 8 (8.9) × (5) 5.1 - 5.9 (6.7) µm
Q = (1.2) 1.23 - 1.4 (1.5) ; N = 12
Me = 7.3 × 5.6 µm ; Qe = 1.3

Any hope getting to species level?
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Malcolm Greaves, 02-11-2022 13:24
Malcolm  Greaves
Re : Pilobolus on dung
I would say it is one of the species around P heterosporus.
Mal
Juuso Äikäs, 02-11-2022 18:13
Re : Pilobolus on dung
Thanks for the answers and links! Maybe I'll label this as P. cf. heterosporus.
Norbert Heine, 02-11-2022 18:57
Norbert Heine
Re : Pilobolus on dung
Hello Juuso,

I think this should be Pilobolus crystallinus. Pilobolus heterosporus is in my opinion the same as Pilobolus kleinii and it should have larger, more orange-yellow spores.

Norbert
Juuso Äikäs, 02-11-2022 19:00
Re : Pilobolus on dung
Ah ok, thanks! Just in the pics I've seen of that species, the spores seem to be clearly narrower in shape.
Malcolm Greaves, 02-11-2022 21:14
Malcolm  Greaves
Re : Pilobolus on dung
There are two species hiding under the name heterosporus and as Norbert says the one with uniform shape but different sized spores has been synonymised by some with P kleinii. The spores are usually much bigger than you specimen. There is a second P heterosporus which has irregularly shaped and sized spores which I personally cannot accept as P kleinii. As you say P crystalinus has cylindrical spores so I cannot see how yours could be that species
Michel Delpont, 03-11-2022 09:56
Michel Delpont
Re : Pilobolus on dung
Hello everyone.

Still quite Difficult to separate certain species of this genus, but I would rather agree with Malcolm; maybe Juuso could show a higher spore count.


Michel.

Juuso Äikäs, 03-11-2022 18:43
Re : Pilobolus on dung
I've just got one extra pic of the spores:
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Michel Delpont, 03-11-2022 20:11
Michel Delpont
Re : Pilobolus on dung
Your pic confirms in my opinion the track of heterosporus.

Michel.
Juuso Äikäs, 03-11-2022 20:13
Re : Pilobolus on dung
Alright, thanks for the opinion!