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20-03-2026 12:53

Eutypa spec. (?)
Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Hymenoscyphus ¿calycinoides?
Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Pseudomassaria-like on Cornus alba
Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Xylariaceae? on Carpinus betulus wood
Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

Myriosclerotinia curreyana?
William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

Lasiobelonium corticale ?
François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

"Lasiosphaerioid"
Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Massarina on Corylus
Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Orbilia on Celtis occidentalis
Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Pyréno sur branche morte de chêne
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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white scutellinia
M Jonathan, 21-12-2015 05:00
M Jonathana all white scutellinia producing long hair with multifurcate base, and quite heavily ornamented spore (measurement 18-20*11-13u) paraphyse where not observed but that is probably because ascus have collapsed for some reason, and finding paraphyse was now impossible.

Any idea?

Collected on rotten wood in Montreal QC, december 2015

 https://c2.staticflickr.com/6/5688/23877116345_f223e1792e_b.jpg

Regards

Jonathan M
Nicolas VAN VOOREN, 21-12-2015 19:25
Nicolas VAN VOOREN
Re : white scutellinia
White specimens of Scutellinia are not usual but possible (due to an absence of carotenoid pigments). It would be interesting to see the content of spores (guttules) in living state to confirm the genus Scutellinia. The genera Paratrichophaea and Trichophaeopsis are close and have species with white or pale grey apothecia.
Can you confirm that the spores are ornamented by a network?
M Jonathan, 21-12-2015 20:06
M Jonathan
Re : white scutellinia
Interesting, the non labelled pictures where in water, so the spore are probably alive there, I can't confirm if there is a network on the spore, but on many occasion I was pretty certain to see it, especially in Melzer.
M Jonathan, 23-12-2015 05:04
M Jonathan
Re : white scutellinia
Here are more photo of it, it cleary have a reticulum, do you think it could be S pennsylvanica?

 https://c1.staticflickr.com/1/765/23917507725_f569ca9058_o.jpg (reticulum)

 https://c2.staticflickr.com/6/5670/23891427816_de1510050b_b.jpg (guttulation)

 https://c1.staticflickr.com/1/616/23621837890_5d9313bb4b_b.jpg (reticulum)
Nicolas VAN VOOREN, 23-12-2015 07:34
Nicolas VAN VOOREN
Re : white scutellinia
Okay, so it's a Scutellinia species and it looks like S. pennsylvanica. The substrate (rotting wood) is also a good character.
John Plischke, 23-12-2015 09:45
John Plischke
Re : white

I have seen S. pennsylvanica once before about 10 years ago, I believe in Maine.  It was an orange colored species.  I dont know if there are white forms of it?  I believe S. pennsylvanica was described from the Yough river near my house.  And yet I have never found it here or anywhere in Pennsylvania.  Its a species I have been looking for the last 10 years without any luck. 

M Jonathan, 23-12-2015 16:45
M Jonathan
Re : white scutellinia
John, I read somewhere on ascofrance, that sometime oranges scutellinia grow whitish for some reason, apparently thjis isn't too rare for this genera.
Nicolas VAN VOOREN, 23-12-2015 18:19
Nicolas VAN VOOREN
Re : white scutellinia
S. pennsylvanica has been found in Europe. See:
Jeannerot B., Etchepare J.F. & Rivet G. 2015. Contribution à l'étude du genre Scutellinia (Pezizales). VI : Scutellinia pennsylvanica (Seaver) Denison
M Jonathan, 24-12-2015 03:45
M Jonathan
Re : white scutellinia
How can you tell that it is a scutellinia by seeing the guttulation?

Nicolas, can you send me that publication please?
Castillo Joseba, 24-12-2015 08:58
Castillo Joseba
Re : white scutellinia
Yo la he encontrado 2 veces  en 2014 en España y en el 2015 en Francia  ... me la identificó B. Jeannerot  

Nicolas   a mi tambien me interesaria  esa publicación


Saludos
Joseba
Castillo Joseba, 24-12-2015 08:59
Castillo Joseba
Re : white scutellinia
El pasado año y tambien este 2015   he encontrado una Scutellinia  casi blanca ... que resultó ser Scutellinia crinita 

Joseba
Nicolas VAN VOOREN, 26-12-2015 09:30
Nicolas VAN VOOREN
Re : white scutellinia
The spores of Scutellinia have spores filled by many guttules, the genera Paratrichophaea, Trichophaeopsis and allies have a different pattern.