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06-12-2024 16:10

B Shelbourne B Shelbourne

• Macro and habitat appear mollisioid.• Mollis

19-11-2024 00:36

Pérez del Amo Carlos Manuel Pérez del Amo Carlos Manuel

Hace unos días encontramos numerosos ejemplares d

02-12-2024 19:02

Margot en Geert Vullings

On a fallen branch, probably Acer, we found these

05-12-2024 16:38

Karl Soler Kinnerbäck

A Melastiza from Padjelanta, alpine Sweden, on cal

06-12-2024 10:28

Jiri Malicek

Hello, would anybody help me with ID of this unusu

05-12-2024 20:43

Juuso Äikäs

I found these black pyrenos a few days ago growing

05-12-2024 20:48

Stoykov Dimitar Stoykov Dimitar

Hallo colleagues,I need to consult a xylarialean c

30-11-2024 18:43

Yanick BOULANGER

BonjourVoici une récolte du 31/10/2024 sur boisJe

05-12-2024 18:11

Yanick BOULANGER

Bonsoir Quelqu'un a t-il une idée de ce que c'es

04-12-2024 18:31

David Chapados David Chapados

Would this be Jackrogersella or Hypoxylon?https://

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?Nectriella on Typha 2
Hans-Otto Baral, 16-07-2008 17:45
Hans-Otto BaralHere the second species, growing a few cm from the first. This appears to be partly superficial but the images show that it also develops beneath the epidermis. The perithecia are larger (still small), and have mosty a distinct and hairy neck.

Perith. 220-280 µm diam. Sp. *17-19.5 x 6-7.3 µm, finely punctate, KOH 15-17.5 x 5-6 µm.
  • message #5141
Hans-Otto Baral, 16-07-2008 17:46
Hans-Otto Baral
Re:?Nectriella on Typha 2
Ostiole at higher magnification
  • message #5142
Hans-Otto Baral, 16-07-2008 17:46
Hans-Otto Baral
Re:?Nectriella on Typha 2
Living spores in water
  • message #5143
Hans-Otto Baral, 16-07-2008 17:49
Hans-Otto Baral
Re:?Nectriella on Typha 2
The hairs are thick-walled and sparingly septate.

Here I did not find a good genus. The hairs with their thick wall are rather straight and prominent, so one might search in Trichonectria or Lasionectra, but the subepidermal growth points again to Nectriella?

Zotto
  • message #5144
Christian Lechat, 16-07-2008 18:13
Christian Lechat
Re:?Nectriella on Typha 2
Does ascomes change color in koh? ascospore uniseriate or biseriate? It looks like N. paludosa
Hans-Otto Baral, 16-07-2008 21:51
Hans-Otto Baral
Re:?Nectriella on Typha 2
Spores are obliquely biseriate, as you can see here. Perithecia do not change in KOH.

Yes, I also compared N. paludosa. But does this species have such thick-walled hairs?

Zotto
  • message #5148