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Mot de passe perdu? S'inscrire

03-10-2017 14:52

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que enco

27-09-2017 02:05

Danny Newman Danny Newman

pulled this off the ID table. it had no tag, but l

05-10-2017 00:34

Valencia Lopez Francisco Javier

Hola a todosLa semana pasada encontré estos ascos

04-10-2017 20:45

Jan-Arne Mentken

Hello everyone,some days ago I found this one on b

02-10-2017 20:43

Edvin Johannesen Edvin Johannesen

I am very short on sordariomycete literature and s

02-10-2017 04:20

Cvenkel Miran

Any idea on not Xanthoria parietina part ?I think

01-10-2017 23:31

Edvin Johannesen Edvin Johannesen

Does anyone have a suggestion which species this i

02-10-2017 22:33

Eva LEIROS

Hello, I'm a French student. I will work on Sordar

02-10-2017 20:43

Edvin Johannesen Edvin Johannesen

I am very short on sordariomycete literature and s

01-10-2017 23:42

Malcolm  Greaves Malcolm Greaves

Can someone help identify this group of Geoglossum

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unknown discomycete from Peru
Danny Newman, 26-09-2017 20:40
Danny Newman

Substrate: small twig >1 cm in diam.

Habitat: fog oasis amidst coastal desert

Ecoregion: Sechura Desert (NT1315)

Collectors: D. Newman & P. Kaishian

Collected during the Ascomycetes Pre-Congress Course of the 9th Congress on Latin American Mycology, hosted by Universidad Peruana Cayetano Heredia in Lima, Peru.

also uploaded at:

https://www.facebook.com/groups/ascomycetes/permalink/1892909654294563/

http://mushroomobserver.org/292342

NOTE: I cannot shrink my images down to 150KB to be uploaded here.  they may be viewed at either of the two above links.

Nicolas VAN VOOREN, 26-09-2017 20:44
Nicolas VAN VOOREN
Re : unknown discomycete from Peru
This looks like an Encoelioid discomycete.
Gilbert MOYNE, 26-09-2017 20:55
Re : unknown discomycete from Peru
Bonsoir,
Ca fait penser à Velutarina rufoolivacea..
Gilbert
Hans-Otto Baral, 26-09-2017 21:24
Hans-Otto Baral
Re : unknown discomycete from Peru
Hi Danny et al.

Indeed my idea was a Cenangiaceae, and Gilbert may be close to the truth. 

Do you have photos in water also? This would be very important because Velutarina, as many Cenangiaceae, have a refractive vacuole in the paraphyses. Velutarina survives in the herbarium for several weeks, so you might still be able to verify this.

Did you test iodine for the asci?

What I miss are the large scattered green excipular cells typical of Velutarina.

Zotto
Danny Newman, 26-09-2017 21:52
Danny Newman
Re : unknown discomycete from Peru
Hello all,

Thank you for the comments.  Unfortunately, this was only mounted in 10% KOH, and I am unaware whether or not it was deposited in Peru, or dried and sent elsewhere.  I can ask the faculty from the course, but I do not have high hopes :(

I don't suppose the warted spores are diagnostic in any way, are they?

-Danny
Hans-Otto Baral, 26-09-2017 22:06
Hans-Otto Baral
Re : unknown discomycete from Peru
This is a great pity, such splendid photos and no possibility to check important characters. One such character of V. rufoolivacea would be the simple-septate ascus base.

V. rufoolivacea ejects hyaline spores which later get brown and warted, though not so coarsly.
But the maturity of the spores is impossible to clarify in a KOH mount.
Danny Newman, 27-09-2017 01:59
Danny Newman
Re : unknown discomycete from Peru
I have written the faculty to see if they know the whereabouts of the material.  Fingers crossed!