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16-01-2026 00:45

Ethan Crenson

Hi all, On decorticated hardwood from a New York

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-01-2026 11:20

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

15-01-2026 10:35

Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

07-01-2026 22:22

Danny Newman Danny Newman

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

13-01-2026 09:10

Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

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Thecotheus formosanus var. collariatus?
Maria Plekkenpol, 03-10-2023 11:07
Maria PlekkenpolHello,
On cowdung I found these. Fb white, "sugarcoated", sessile, starting conical but then with broadened apex with hymenium sinking which makes it a bit cupshaped. No hairs, around 1 mm.
Asci cylindrical, quite narrow, 8-spored. 195-218 x 14-15, operculate, amyloid.Two types of paraphyses, both exceeding the asci:
1. hyaline, slightly capitate, apex 4,4-5,6 µ, filled with light yellow VB's
2. Hyaline, septated, very slender, not capitate
Spores ellipsoid and (quite a lot of them) amygdaliform, with cyanophilous and congophilous collarettes. In CB and CR verruculose. 17,9 x 8,8 Q= 2,03.
Can anyone confirm (or not) this determination? Thank you in advance!
Greetings, Maria
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Michel Delpont, 03-10-2023 13:59
Michel Delpont
Re : Thecotheus formosanus var. collariatus?
Hello Maria.

We can see the collars under the apicles on the spores, which with the ornamentation points towards this species. Nice find!


Michel.

Maria Plekkenpol, 03-10-2023 14:47
Maria Plekkenpol
Re : Thecotheus formosanus var. collariatus?
Hello Michel,
Thank you for your confirmation! I am very happy indeed, thank you!

Greetings, Maria
Norbert Heine, 05-10-2023 17:05
Norbert Heine
Re : Thecotheus formosanus var. collariatus?
Hello Maria,

like Michel said this is without doubt Th. formosanus v. collariatus. It seems to be a very rare species.


I think this is still the only collection for germany!

Norbert
Maria Plekkenpol, 05-10-2023 18:50
Maria Plekkenpol
Re : Thecotheus formosanus var. collariatus?
Hello Norbert,
First: thank you for confirming it too!
After arriving at this species with the key in 
"AN UPDATED KEY TO COPROPHILOUS PEZIZALES AND THELEBOLALES IN ITALY" by Doveri (2007) I searched the Internet and your post was one of the first I saw!
I was very excited to see everything I had seen in your find and description and the confirmation from Nobi (I am sorry, don't know his full name). I still posted it here, because of the fact that it is so rare: in the Netherlands also only one find by Ron Bronckers years ago.

Again: thanks for your reaction and what a beautiful passion we all have hahaha! 
Greetings, Maria