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Marc Detollenaere
Dear Forum,On decorticated wood of Castanea,I foun
unknown discomycete from Peru
Danny Newman,
26-09-2017 20:40
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
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
Ca fait penser à Velutarina rufoolivacea..
Gilbert
Hans-Otto Baral,
26-09-2017 21:24
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
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
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
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
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.
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
Re : unknown discomycete from Peru
I have written the faculty to see if they know the whereabouts of the material. Fingers crossed!