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19-04-2025 18:58

Korf & Lizon 2000
Michel Hairaud Michel Hairaud

Bonjour,Je recherche l'article suivant :  ... K

18-04-2025 23:16

Mollisia
Robin Pétermann Robin Pétermann

Bonjour, Voici une probable Mollisia, genre que j

19-04-2025 08:51

Unknown pyrenomycetous fungus growing on cowberry
Henri Koskinen

Could you help me in the right direction with this

18-04-2025 21:54

Unknown aquatic pyrenomycete
Hartmut Schubert Hartmut Schubert

Hi Forum,I found this aquatic pyrenomycete a few d

16-04-2025 08:53

Anamorph on a leaf.
Josep Torres Josep Torres

Hello.An anamorph photographed under holm oaks thi

18-04-2025 17:13

Helotiales on herbaceous stems
Francois Guay Francois Guay

I found this interesting reddish Helotiales growin

18-04-2025 11:34

Gelatinosa en Acacia
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España), r

17-04-2025 23:03

Scutellinia
Yanick BOULANGER

BonsoirVoici un Scutellinia qui nous pose un probl

17-04-2025 18:31

Peziza ammophila / pseudoammophila ?
Giovanni ANTOLA Giovanni ANTOLA

Bonjour, J'aurais besoin d'aide avec ce pezizale

13-03-2025 19:16

Wood anatomy
Enrique Rubio Enrique Rubio

By means of these photographs could anyone identif

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White oddity
Marja Pennanen, 27-05-2010 10:41
I found these on a juncus-like grass. They are about 0,5-0,7 mm high and 0,2-0,4 mm wide. The base of stipe is brown.
  • message #11628
Marja Pennanen, 27-05-2010 10:49
Re:White oddity
This showed some facilities new to me in microscope.
I've never seen such paraphyses or hairs- meaning so big droplets.
The spores are 6-12x1-2, asci 33-40x4-5.
Lanceolate paraphyses are 4-5 micrometers wide and exceed the asci about 10-15 micrometers and have lots of droplets.
Hairs are 35-40x3-5 and they have droplets, too. Except at the stipe, where they are smaller, but can branch.
Strange, actually I have no idea even of the genus...

Marja
  • message #11629
Enrique Rubio, 27-05-2010 10:51
Enrique Rubio
Re:White oddity
Its a Lachnum (Dasyscyphus) species, probably L. pudicellum
Enrique
Hans-Otto Baral, 27-05-2010 10:56
Hans-Otto Baral
Re:White oddity
Yes, I agree. The hairs are surely warted. The droplets inside and in the paraphyses are VBs (vacuolar bodies), they are responsible for the colour change to red-brown in the dead state. Such a fungus may look deep brown when dry. If you add KOH these droplets disappear.

Zotto
Marja Pennanen, 27-05-2010 11:17
Re:White oddity
Hello,

thanks. One of the synonyms seems to be L. tenuissimum and I've allready found that.
With another microscope things seems different ;)

Marja