Accès membres

Mot de passe perdu? S'inscrire

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 07:05

Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

15-12-2025 12:34

Danny Newman Danny Newman

indet. Rhytismataceae on oak leafnear Purchase Roa

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

13-12-2025 17:26

Buckwheat Pete

Hello everyone,I have a rather interesting ascomyc

« < 1 2 3 4 5 > »
Sur Rubus
Camille Mertens, 17-02-2016 16:26
Bonjour à tous.
Récolté sur Rubus fructicosus le 4 février 2016.
Diam. 0.5 mm.
Sessile, tôt pulviné, blanchâtre, rougissant et enfin brunissant.
Asques octosporés avec crochets : 85 - 100 x 9,4 - 13, IKI +
Spores fusiformes multiguttulées, comportant une cloison à mâturité, enrobées d'une gaine: (19,3) 21,4-23,4 (24,6) x (4,5) 4,7 - 5 µm
Paraphyses contenant des vacuoles réfringentes.
Quelques poils épars, hyalins.
J'ai bien une idée mais cela ne correspond pas macroscopiquement.
Merci de votre aide.

Camille


  • message #40979
  • message #40979
  • message #40979
  • message #40979
  • message #40979
  • message #40979
  • message #40979
  • message #40979
  • message #40979
Hans-Otto Baral, 17-02-2016 16:37
Hans-Otto Baral
Re : Sur Rubus
Dear Camille

The endless Calycina saga, and an interesting species that I do no know.

I think the "poils" are ascogenous hyphae.

Some Calycinas show such reddening indeed.

my C. subparilis is similar but has smaller spores and an IKI-red apical ring.

To see the ring-shape better you should take a photo of a dead ascus.

Is it from Belgium?

Zotto
Camille Mertens, 17-02-2016 17:09
Re : Sur Rubus
Dear Zotto.

Vielen Dank fur ihrer Anwort.
The collection comes indeed from Belgium (South of Brussels).
How could I "kill" the ascus? Using Melzer?
Kind regards.

Camille
Hans-Otto Baral, 17-02-2016 17:42
Hans-Otto Baral
Re : Sur Rubus
for example by stronger pressure on the cover slip, this is the easiest way. Or when you wait some minutes after adding Lugol. Also by drying the preparation and later adding water may kill the asci.
Camille Mertens, 17-02-2016 19:06
Re : Sur Rubus
Hello again Zotto.

Herewith the ring-shape as you told me to do.

Best regards.

Camille
  • message #40984
  • message #40984
  • message #40984
Hans-Otto Baral, 17-02-2016 21:22
Hans-Otto Baral
Re : Sur Rubus
Yes, this is helpful, you see the ring and apical wall around is thicker, and the cytoplasm detached.

But with so large spores I know nothing.
Camille Mertens, 17-02-2016 22:52
Re : Sur Rubus

Many thanks for your help Zotto.


 


Camille