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11-02-2026 22:15

William Slosse William Slosse

Today, February 11, 2026, we found the following R

11-02-2026 19:28

Lothar Krieglsteiner Lothar Krieglsteiner

on small deciduous twig on the ground in forest wi

25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by JÃ

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

10-02-2026 17:42

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

10-02-2026 18:54

Erik Van Dijk

Does anyone has an idea what fungus species this m

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Ã…ge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

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Hymenoscyphus on Juniperus
Marja Pennanen, 30-08-2010 09:14
Hello,
as I mentioned I found something on the needles and twigs of Juniperus, which I naturally couldn't determine.
These are about 0.3-0,7 mm wide and 1-2 mm high.
The base of the stipe may be darker.
  • message #12692
Marja Pennanen, 30-08-2010 09:16
Re:Hymenoscyphus on Juniperus
The spores are multiguttulate, 12-17x3-4 and asci 75-95x6-8, IKI+.
Paraphyses are septate, some with VB:s and 2-2,5 micrometers wide.
Poor photo of the shape of the spores:
  • message #12693
Marja Pennanen, 30-08-2010 09:22
Re:Hymenoscyphus on Juniperus
Another view of microscophy.

Why are these Hymenoscyphuses so hard fo me to open?
I've been able to determine lately only H. kermesinus, H. scutula, H. salicellus and H. caudatus, which are allready quite familiar to me.

Desperate Marja
  • message #12694
Hans-Otto Baral, 30-08-2010 12:41
Hans-Otto Baral
Re:Hymenoscyphus on Juniperus
Hymenoscyphus is one of the most difficult genera. especially those with scutuloid spores are a hard nut. I do not see clear in such species like H. caudatus and even H. scutula.

Yours has quite narrow spores, and at the moment I have no suggestion, sorry. Important would be to know the croziers, actually. The ascus base is quite well seen on your photo, but should be viewed with oil immersion. I am sure you can learn that, I also must often search some time to see the feature clearly. It depends on the orientation, on the living state, on maturity etc., all this can obscure the feature. Best is to make a section and look at living cells.

Zotto
Marja Pennanen, 30-08-2010 13:43
Re:Hymenoscyphus on Juniperus
Hello Zotto,

my problem is that I've got almoust no practical education to mycology or nothing else, too.
I've just learned myself on the way.
Just dived (fast and deep?) into it and hoped to survive ;).

Now I'm waiting in despair, when the local university needs my loaned microscope for educational purposes.

Marja