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09-01-2026 17:41

Bryonectria callicarpa Döbbeler; ein Bryoparasit auf Frullania dilatata
Arnold Büschlen

Hallo, F. dilatata wird von vielen Bryoparasiten

10-01-2026 20:00

Lichenicolous fungus on Protoparmeliopsis muralis
Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

07-01-2026 22:22

Tatraea sp. on indet. hardwood - 303452087
Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

10-01-2026 01:18

cf. Neovaginatispora fuckelii on indet. shrub - 305938906
Danny Newman Danny Newman

cf. Neovaginatispora fuckelii on indet. shrub Pre

07-01-2026 10:24

Pezicula sp. on indet. hardwood - 303870019
Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

09-01-2026 10:08

Orbilia posible aurantiorubra
Blasco Rafael Blasco Rafael

Hola, en el mismo habitat que la anteriorRetamaDia

08-01-2026 21:22

Orbilia pilifera posible
Blasco Rafael Blasco Rafael

Hola, He recogido esta muestra de Orbilia sobre Re

07-01-2026 17:29

White tree-like anamorph on Populus
Marc Detollenaere Marc Detollenaere

Dear Forum,On a barkless Populus I found some smal

10-11-2021 17:33

anamorph Chlorociboria aeruginella
Riet van Oosten Riet van Oosten

Add-on topic http://www.ascofrance.com/forum/7059

07-01-2026 10:05

cf. Chaetospermum on Xylaria - 303631739
Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

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Hymenoscyphus on cone of Alnus
Stefan Jakobsson, 07-08-2022 01:57
A light-coloured Hymenoscyphus growing on a cone of Alnus incana in moist sand gives me a light headache. The disc is up to 2,2 mm wide. The scutuloid spores are (15.0)15.5-18.0(19.7) × (3.7)4.0-4.6(4.8) µm, without setulae, and the asci 95-110 × 8.2-11.4 µm. It seems to have croziers, so H. fructigenus does not look right. Also, I did not find seeds when digging for them, so not either H. seminis-alni.

Are there better alternatives?


Thanks in advance,


Stefan

  • message #73635
  • message #73635
  • message #73635
  • message #73635
Hans-Otto Baral, 07-08-2022 09:04
Hans-Otto Baral
Re : Hymenoscyphus on cone of Alnus
Indeed clearly with croziers. I do not remember a species fitting this. The substrate is nt recognizable from your photos, is the cone entire or broken?
Stefan Jakobsson, 07-08-2022 10:24
Re : Hymenoscyphus on cone of Alnus
The cone is entire.