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21-07-2024 10:13
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
Bonjour,Récolte sur branchette de Castanea dans u
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21-07-2024 10:28
![Alan Rockefeller](/uploads/user_vgn/-0063.jpg)
Which Peziza did I find on horse dung in Humboldt
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19-07-2024 11:08
![Miguel Ãngel Ribes](/uploads/user_vgn/Ribes-0001.jpg)
Good morningThis Scutellinia from July 9 grew at 1
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21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
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08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
Hymenoscyphus on Rubus
Chris Yeates,
15-11-2021 16:37
![Chris Yeates](/uploads/user_vgn/Yeates-0001.jpg)
Bonjour
Continuing my work on fungi on Rubus I recently collected a small section of dead Rubus fruticosus stem with three long-stalked Hymenoscyphus apothecia.
Under the microscope at x400 these looked like typical H. scutula (H- 19.2-22.5 x 4.4-5µm), though I could see no evidence of cilia. With oil at x1000 the usual cilia one might expect were not seen, but almost every ejected spore had 2 (occasionally 3) short projections, mostly at the "tail" end but also often at both ends. I managed to find something similar in Zotto's folder:
scutula - vitellinus H- > Hymenoscyphus scutula on Impatiens, 5.X.08.jpg
So this is not an unknown feature, I was interested, though, that this was not an occasional occurrence - with careful searching most (of many) spores showed this.
Chris
Hans-Otto Baral,
15-11-2021 16:56
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
Re : Hymenoscyphus on Rubus
Yes, this is nothing rare. Did you look for the ascus base? Surely without croziers I assume.
You can see them in my Hymenoscyphus menthae paper in H. macroguttatus (figs 32 33 36) and in a species on Vitis (62). In H. vitellinus they tended to be longer. This is quite a difficult group and requires DNA study.
Chris Yeates,
15-11-2021 18:22
![Chris Yeates](/uploads/user_vgn/Yeates-0001.jpg)
Re : Hymenoscyphus on Rubus
Ah wie dumm von mir!
I read through Dennis's and White's papers, but forgot http://www.ascofrance.fr/uploads/forum_file/Baral-2015-Hymenoscyphus-menthae-AscomyceteOrg-07-06-0001.pdf
Thanks Zotto, and yes - as I think I said before - without croziers "H-"