07-09-2025 11:34
Zuzana Sochorová (Egertová)
Hello,I have identified this fungus as Hymenoscyph
05-09-2025 18:53
Robin Isaksson
Hi! Spores 1 septate; 12-13 x 3um Hairs 35-75
05-09-2025 09:32
Nicolas VAN VOOREN
Bonjour, hi everyone,Do you know where the fungari
03-09-2025 21:59
Philippe PELLICIERLa Léchère, Col de la Madeleine, alt 1970m, au s
04-09-2025 20:11
Åge OterhalsSaccobolus on dear droppings. Can any of you confi
03-09-2025 12:44
Enrique Rubio
Hi to somebody.I would like to know your opinion o
31-08-2025 19:41
Enrique Rubio
Hi to someone.I need to download this issue of Sve
I have a Hysterium on resin from bark of Picea abies. It deviates from H. pulicare found on a nearby tree. The ascomata are narrower and more upright with a slightly "sharper" apical edge, and a narrower base. Spores measure 20-26 x 6-8 microns, 3-septate without constrictions and end-cells not notably paler (only on a few of the spores). Could it be H. angustatum? (Is H. angustatum synonymous with H. acuminatum?). Or is this within the variability of H. pulicare?
Hi Edvin,
To my mind, it's definitively not H. pulicare.
H. angustatum is considered to be the most widespread species, in a variety of substrates (including Picea). But your collection, which I would link to H. angustatum, is still atypical. Perhaps a serious study would be necessary to better understand what H. angustatum really is.
Getting molecular data could be an excellent idea, as an anticipation.
Alain