white scutellinia - Forum ASCOFrance

21-12-2025 21:32

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'

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21-12-2025 21:31

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 21:31

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

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Hi.These grew on pine wood that was heavily covere

white scutellinia

M Jonathan, 21-12-2015 05:00

a 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

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

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

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

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

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

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

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

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

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

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

Re : white scutellinia

The spores of Scutellinia have spores filled by many guttules, the genera Paratrichophaea, Trichophaeopsis and allies have a different pattern.

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