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16-10-2020 15:02

Greenish on Betula leaf
Juuso Äikäs

These yellowish-greenish little ascos were growing

15-10-2020 14:54

Discomycet on Vaccinium myrtillis
Karl Gumbinger

Hello Asco friends,this is my first post in the AF

15-10-2020 13:31

Hymenoscyphus on Populus leaves
Juuso Äikäs

These were growing on fallen leaves of Populus tre

12-10-2020 18:54

On Pinus cone
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have here some Rhytismatales on a cone of

14-10-2020 00:26

Rustroemia quercina literature?
Viktorie Halasu Viktorie Halasu

Hello,would anyone have any info about Velenovsky'

14-10-2020 11:32

Ombrophila type on soil
Charles Aron Charles Aron

Hi All, During July this summer I found a turbina

14-10-2020 07:52

Hymenoscyphus sp.
Mirek Gryc

HiLast Sunday I found this Hymeoscyphus growing on

13-10-2020 20:40

Boudiera
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,this Boudiera has been collected in South Bo

11-10-2020 07:26

Puccinia on Euphorbia cf maculata in the wild
Stephen Martin Stephen Martin

Hi. I found a patch of Euphorbia cf maculata infes

13-10-2020 18:26

Yellow Discomycete on Soil
Charles Aron Charles Aron

Hi All, For a couple of months I have been findin

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Greenish on Betula leaf
Juuso Äikäs, 16-10-2020 15:02
These yellowish-greenish little ascos were growing on a fallen leaf of Betula sp. The paraphyses and hairs had nice greenish VBs that disappeared with the addition of KOH. IKI+, croziers+. The spores measured 14.3-17.5 x 1.8-2.6 microns.

This seems both macro- and microscopically fairly distinctive and interesting to me. Maybe someone knows the species?
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Hans-Otto Baral, 16-10-2020 15:47
Hans-Otto Baral
Re : Greenish on Betula leaf
This is Calycellina araneocincta. Very close to C. lachnobrachya but with yellow VBs and specific to Betula.

Both species are unsequenced as far as I know, only C. lachnobrachyoides is in GenBank. To base a distinct species solely on colour is unusual, therefore I wonder about the genetic distance between the two.
Juuso Äikäs, 16-10-2020 16:28
Re : Greenish on Betula leaf
Thanks for the info. So this time it was a Calycellina! I found Phialina lachnobrachya from our species list (apparently a synonym for C. lachnobrachya), but no araneocincta. Maybe I'll try to find more to make a sample for storage.
Hans-Otto Baral, 16-10-2020 16:39
Hans-Otto Baral
Re : Greenish on Betula leaf
yes, some authors follow Huhtinen to place the group in Phialina.