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Allophylaria zenobia on Quercus robur leafs
Johan Myhrer,
18-10-2018 23:23
Have been struggeling with these for a while, found few very dry specimens a couple of weeks ago on decomposed Quercus robur leafs (central Sweden), today I found some more and finally I got a name on them, I think? Allophylaria zenobia is not known from Sweden so I'm looking for a description. Anyone have Svrcek's revision from 1984?
Asci: ~100x12µm
Spores: ~16x5µm
Ascus apex IKI+ red.
Best wishes from Johan Myhrer!
Viktorie Halasu,
19-10-2018 07:05
Re : Allophylaria zenobia on Quercus robur leafs
Hello,
you meant this source? Svrcek (1984) [1985]: A taxonomic revision of inoperculate discomycetes described by J. Velenovsky in the genus Helotium, preserved in National Museum, Prague. Acta Mus. Nat. Pragae, Ser. B., Hist. Nat. 40 (3-4): 129-216.
All issues of Acta mus. nat. Pragae were online not so long ago but now there's new version of the museum website and I didn't find it there anymore. You can download it from my googledisk (ca 15 MB): https://drive.google.com/open?id=166ZURiWcLX61m2uiMH6rcFaYIsyD9Rmn
Viktorie
you meant this source? Svrcek (1984) [1985]: A taxonomic revision of inoperculate discomycetes described by J. Velenovsky in the genus Helotium, preserved in National Museum, Prague. Acta Mus. Nat. Pragae, Ser. B., Hist. Nat. 40 (3-4): 129-216.
All issues of Acta mus. nat. Pragae were online not so long ago but now there's new version of the museum website and I didn't find it there anymore. You can download it from my googledisk (ca 15 MB): https://drive.google.com/open?id=166ZURiWcLX61m2uiMH6rcFaYIsyD9Rmn
Viktorie
Hans-Otto Baral,
19-10-2018 08:23
Re : Allophylaria zenobia on Quercus robur leafs
Dear Johan
I agree, but I am in strong doubt about the name Conchatium zenobiae. Svrcek's redescription is clearly not an Allophylaria but rather a Hymenoscyphus, perhaps H. syringaecolor, although the spores are not constricted and the asci inamyloid.
So I suggest to use the name A. nervicola. There is some variation in spore size so that I made two folders, one 12-15 and one 14-18 µm. The type of A. nervicola belongs more to the 12-15 range. Velenovsky measured 12-16 but his measurements are often doubtful.
Did you measure more spores to get a range? I would also like to add the collection date and site to your sample.
Zotto
I agree, but I am in strong doubt about the name Conchatium zenobiae. Svrcek's redescription is clearly not an Allophylaria but rather a Hymenoscyphus, perhaps H. syringaecolor, although the spores are not constricted and the asci inamyloid.
So I suggest to use the name A. nervicola. There is some variation in spore size so that I made two folders, one 12-15 and one 14-18 µm. The type of A. nervicola belongs more to the 12-15 range. Velenovsky measured 12-16 but his measurements are often doubtful.
Did you measure more spores to get a range? I would also like to add the collection date and site to your sample.
Zotto
Johan Myhrer,
19-10-2018 08:45
Re : Allophylaria zenobia on Quercus robur leafs
Goodmorning!
I actually considered nervicola early and it feels alot more "comfortable". So I happily agree :-)
Measured 10+ spores.
Collected 2018-10-18
Sweden, Hälsingland, Bergsjö, Bjåsta
I actually considered nervicola early and it feels alot more "comfortable". So I happily agree :-)
Measured 10+ spores.
Collected 2018-10-18
Sweden, Hälsingland, Bergsjö, Bjåsta
If you also need coordinates, I have them att home. Currently at work.
Best wishes from Johan Myhrer!
Best wishes from Johan Myhrer!
Johan Myhrer,
19-10-2018 08:52
Re : Allophylaria zenobia on Quercus robur leafs
I give you spore range tomorrow...
Hans-Otto Baral,
19-10-2018 10:27
Re : Allophylaria zenobia on Quercus robur leafs
Thanks, I overlooked the indirectly mentioned date, but with yesterday you obviously meant the 19.Oct. not 17. Yes, please also coordinates.
Johan Myhrer,
20-10-2018 16:24
Re : Allophylaria zenobia on Quercus robur leafs
15-18,5x5-6µm.
61°59'23.9"N 17°1'36.3"E
/Johan M
Hans-Otto Baral,
20-10-2018 21:12
Re : Allophylaria zenobia on Quercus robur leafs
Thanks, so it is the more frequent large-spored variant.
Johan Myhrer,
20-10-2018 21:44
Re : Allophylaria zenobia on Quercus robur leafs
Thanks to you Zotto! :-)
Nervicola is not known in Sweden previously, atleast according to Checklist of the non-lichenized ascomycetes of Sweden (Eriksson 2014) and Dyntaxa (Swedish taxonomic database).
/Johan M