08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
Hymenoscyphus on Picea needles IKI-, H+
Khomenko Igor,
19-01-2021 15:09
Hi,
On spruce (Picea) needles, small, white discomycete fungi.
White stipitate apothecia around 1.5mm in diameter.
8-spored asci IKI- even after KOH, croziers(+), 92.7 - 96 × 7.42 - 7.7 µm;
Spores 10.2 - 12.8 x 3.1 - 3.9 µm; Q = 2.8 - 4; N = 30, Me = 11.6 x 3.6 µm
more pictures: https://inaturalist.org/observations/61427186
Microscopy is similar to Hymenoscyphus sulphuratus, but it is pure white and it was matured. Are there any other options?
Thanks you,
Igor
Hans-Otto Baral,
19-01-2021 16:55
Re : Hymenoscyphus on Picea needles IKI-, H+
At least I can say you need to turn all spores upside down :-)
Reminds me of Hymenoscyphus lutescens but that has amyloid asci and is on conifer wood.
Khomenko Igor,
19-01-2021 21:58
Re : Hymenoscyphus on Picea needles IKI-, H+
Thank you, Zotto,
I'm going to try to remember where a tail and a head are, but it is not that clear to me.
I'm going to try to remember where a tail and a head are, but it is not that clear to me.
Hans-Otto Baral,
20-01-2021 08:42
Re : Hymenoscyphus on Picea needles IKI-, H+
I helotiales it is principally always so that the broader end is the upper end - for aerodynamical reasons ecause the spores are ejected one after the other. You can check this inside the asci.
Khomenko Igor,
20-01-2021 23:58
Re : Hymenoscyphus on Picea needles IKI-, H+
Thank you for explaining.
These spores remind me of a paramecium, so I always want to place the wider side down.
These spores remind me of a paramecium, so I always want to place the wider side down.