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06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

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Orbilia cf. luteorubella
Zuzana Sochorová (Egertová), 14-08-2022 15:50
Zuzana Sochorová (Egertová)Hello,
this Orbilia grew on a strongly rotten branch (probably Alnus) in a place which is usually submerged by standing water. Microscopic characters of the teleomorph fit the Orbilia luteorubella-O. rosea group, colour of apothecia and the ecology fit better O. luteorubella.
However, there is a problematic anamorph.

Ascospores 7.9-9.8 × 1.4- 1.8 µm, Q = 4.8- 7
Me = 8.7 × 1.6 µm; Qe = 5.7
SB subulate, one in each spore, 2.4-4.4 × 0.6-0.8 µm, usually thickest in the lowest part.


Asci 36 - 49 × 4-4.3 µm, 8-spored, upper spores oriented normally, lower spores inverted, apex truncate, base L. or T-shaped
SB subulate, one in each spore, 2.4-4.4 × 0.6-0.8 µm, usually thickest in the lowest part.


Paraphyses capitate, apical cell 20-23 × 2.4-3.5 µm.


Ectal excipulum composed of globose, angular or pyriform cells, individual cells
8-19 × (5) 6.9 - 14 µm
Q = (1.1) 1.2 - 2.2 (3.8) ; N = 16
Me = 15 × 9.2 µm ; Qe = 1.7


Conidia hyaline, straight, 1- to 3-septate, 20-35 × 7-9.5 µm. The anamorph was found on several places among the apothecia. It doesn´t fit neither luteorubella, nor rosea. Is it possible the anamorph doesn´t belong to the apothecia, but another species/genus...?
Zuzana

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Zuzana Sochorová (Egertová), 14-08-2022 15:51
Zuzana Sochorová (Egertová)
Re : Orbilia cf. luteorubella
Spores
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Zuzana Sochorová (Egertová), 14-08-2022 15:53
Zuzana Sochorová (Egertová)
Re : Orbilia cf. luteorubella
more photos
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Zuzana Sochorová (Egertová), 14-08-2022 15:55
Zuzana Sochorová (Egertová)
Re : Orbilia cf. luteorubella
anamorph
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Hans-Otto Baral, 14-08-2022 16:57
Hans-Otto Baral
Re : Orbilia cf. luteorubella
Hi Zuzana

I checked your first photo with automatic white balance and think the colour is orange-rose which points to luteorubella too.

The anamorph is not orbiliaceous since no phialidic conidiogenesis is known in Orbiliomycetes.

Zotto
Zuzana Sochorová (Egertová), 14-08-2022 17:26
Zuzana Sochorová (Egertová)
Re : Orbilia cf. luteorubella
Hi Zotto,
thank you very much!
Zuzana