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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Even the hairy genus unknown
Marja Pennanen, 05-09-2014 01:28
Hi forum,

it is late and I have tried to determine this peculiar collection.
These grow on a Vaccinium uliginosum leaf. They are up to 0,7 mm wide and stipate.

The hairs are unfamiliar to me, so I'm expecting a new genus for me.
They are septate and seems to have something brush like on the top of them.
They are up to 250x5-7 long.
The spores are about 12-16x2,5-3 and have droplets (or warts, can't be sure).
The asci are about 55-62x5-7, IKI reaction very mild, if some.
Paraphyses are weakly lanceolate, about 2 micrometers wide.
The marginal cells are long, about 40x5-7.

The collection is only one leaf with a few fruitbodies, is there any reason to go and try to find more?

Marja
  • message #31132
  • message #31132
  • message #31132
Martin Bemmann, 05-09-2014 08:32
Martin Bemmann
Re : Even the hairy genus unknown
Dear Marja,

the "brush" on top of the hairs are crystals. This could be Incrucipulum virtembergense.

Best
Martin
Marja Pennanen, 05-09-2014 20:36
Re : Even the hairy genus unknown
Dear Martin,

danke schön!

Yes, it must be Incrucipulum virtembergense, a new genus for me.

This is on the ascomycete list of Finland as Lachnum virtembergense and  has been determined by Raitviir.
No wonder, that I could not determine this, if proffessionals here could not do that...

The funny crystals look like a brush when you see them with 500x magnification ;)

Marja