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24-04-2026 03:16

Trinacrium robustum?
David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Pseudaegerita spec.
Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

Fungus sp
François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Peziza
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Poilu, violet avec KOH
Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Lophodermium on Typha
Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

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Pilobolus umbonatus
Joop van der Lee, 03-12-2020 11:40
Joop van der Lee
Found on cow dung scattered between P. kleinii species

I noticed it because of its small size and the fact that it has an umbo on top of the sporangium.

The fruitbody is hyaline in contrast to the one from P. kleinii which has an orange colour. (Photo 4 & 5)

Spore size 5.5-6.3x3.6-3.9 um

Joop



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Norbert Heine, 03-12-2020 16:28
Norbert Heine
Re : Pilobolus umbonatus??
Hello Joop,

I have no doubts about this species.

Compare also with the wonderful portrait from my friend Matthias at Pilzforum.eu.


Norbert
Joop van der Lee, 03-12-2020 17:19
Joop van der Lee
Re : Pilobolus umbonatus??
Hello Norbert,

Thanks for you response they are very nice pictures indeed. 
I am still busy with stacking of photos here is a result of P. kleinii.

I also did find a subsporangular swelling without a sporangium but the bulb on top of the swelling looks like a sporangium.
After a few minutes is disappeared and closed the swelling as if it was a lid without causing the swelling to collapse, a very peculiar find.

Regards,


Joop
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Malcolm Greaves, 03-12-2020 17:26
Malcolm Greaves
Re : Pilobolus umbonatus??
Reallistically the only one you can be sure of without the microscope.
Mal
Joop van der Lee, 03-12-2020 17:31
Joop van der Lee
Re : Pilobolus umbonatus??

Thanks Mel.

Regards,

Joop