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15-03-2015 13:20

tropical Ascocoryne
Andreas Gminder Andreas Gminder

Dear colleugues, in the montane cloud forests of

15-03-2015 12:54

Helvella monograph
Peter Welt Peter Welt

We (DGfM e.V.) want to reduce our inventory. From

14-03-2015 20:33

What could be this?
Elsa Sousa

Hello,I found these asco's on a wet place with som

14-03-2015 14:22

Literature Request
Chris Johnson

GreetingsDoes anyone have available as a pdf: Zhur

13-03-2015 10:26

Textura intricada vs. Textura intricata
Miguel Ãngel Ribes Miguel Ángel Ribes

Good morningI would like to propose an issue. Most

12-03-2015 14:36

Mollisia
Castillo Joseba Castillo Joseba

en madera de Eucalipto, posiblemente Eucalyptus g

13-03-2015 18:14

Anthostomella on Fraxinus
Enrique Rubio Enrique Rubio

Hello again I'd like to know your opinion about t

12-03-2015 19:10

Paraorbiliopsis minuta?
Steve Clements

Hi,I tried to key out this minute asco using Ellis

13-03-2015 08:48

Literature request
Katarina Pastircakova

Hello,if anyone has access to Butin, H. European

11-03-2015 19:06

Eutypa ulicis literature
Jenny Seawright Jenny Seawright

Hello all, I was wondering if anyone might have a

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Pseudonectria?
Björn Wergen, 22-03-2014 00:11
Björn WergenHi friends,

I have a collection from Braga, Portugal, on indetermined plant debris (very flat stems with hairs on the surface, I do not know what that is). On this substrate I have found a nectrioid species with a Volutella anamorph and Gibberella cyanogena with a Fusarium anamorph. According to Rossman 1999, Volutella is a common anamorph of the genus Pseudonectria, which unfortunately has one septated ascospores. Is there any other idea what this one can be?

Fruitbodies are about 200-260µm in diametre, orange-yellow and with prominent papilla, with a 7-15µm broad wall and 8spored asci about 70-90x6,5-8µm. Spores are 8,2-10,3x4-4,5µm, 2celled and with dotted surface. KOH negative.

Thanks in advance for any help.

regards,
björn
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Walter Gams, 22-03-2014 10:17
Walter Gams
Re : Pseudonectria?
Dear Björn, It seems that you have the rare teloeomorph of the very common Volutella ciliata. volutella is heterogeneous as shown by Gräfenhan et al. in Stud. Mycol. 68: 79-113. The teleomorph of Volutella s. str. was formerly in Cosmospora, but is now segregated and the generic name Volutella will be retained for these fungi. On the other hand, Volutella buxi is now in Pseudonectria buxi.  In a study of these fungi many years ago, Gary Samuels confused this fungus with the teleomorph of V. minima. A detailed description of the teleomorph with molecular study of an isolate would be worth while.
Björn Wergen, 22-03-2014 11:26
Björn Wergen
Re : Pseudonectria?
Dear Walter,

so can I send you the collection for further studies? I am very interested in this.

regards,
björn