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16-02-2026 18:34

Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-02-2026 17:14

Joanne Taylor

Last week we published the following paper where w

16-02-2026 17:13

Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

16-02-2026 00:05

Maren Kamke Maren Kamke

Good evening, I am looking for the following pape

16-02-2026 11:53

Joeri Belis

between leaf litter on twig in young salix growth.

14-02-2026 22:45

Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

13-02-2026 03:30

Tomaz Vucko Tomaz Vucko

Hello! I found these immersed perithecia on a stic

15-02-2026 20:28

éric ROMERO éric ROMERO

Bonjour tous, Un Mollisia qui me pose problème..

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Valsa, need help/literature
Björn Wergen, 12-12-2011 23:43
Björn WergenHi again,

yesterday I have found 2 species of the genus Valsa. To make this sure, it would be great if someone can give me a hint for literature about Valsa (and near related genera). Although Ellis&Ellis is not bad with pyrenos, the genus Valsa is shown only "rudimentary" (just a few descriptions).

Many many thanks for all the help.

regards,
björn
Chris Yeates, 14-12-2011 01:29
Chris Yeates
Re : Valsa, need help/literature
hi

I think the reason the coverage seems 'rudimentary' is because in the UK there are very few true Valsa species left on the list, and many of those rest on one or two old records; in addition many records of Valsa tend to be those of Cytospora anamorphs rather than the sexual stage

most Valsa species have been redisposed into other genera

I can offer A monograph of Valsa on hardwoods in North Americ?a by Linda Spielman (Canadian Journal of Botany Volume 63, pp. 1355-1377)

also, for near related genera, do you have Margaret Barr's The Diaporthales in North America? (Mycologia Memoir No. 7, 1978)?

best wishes

Chris
Björn Wergen, 14-12-2011 10:04
Björn Wergen
Re : Valsa, need help/literature
Hi Chris,

many thanks for the offer, I am very interested in it. I do not know the first one, but I know Margaret Barr's Diaporthales. I just do not know if I have the work on my PC, I remember that I had found it somewhere on internet. (google books? internet archive?).

What means offer? Can you send me these documents? It would help a lot.

regards,
björn
Chris Yeates, 15-12-2011 02:39
Chris Yeates
Re : Valsa, need help/literature
Documents sent Björn

they are quite big files - let me know you have received them OK

mit den besten Wünschen

Chris

Gernot Friebes, 15-12-2011 07:44
Re : Valsa, need help/literature
Hi Chris,

could you please send me these papers too? Thanks!

Best wishes,

Gernot
Björn Wergen, 15-12-2011 09:31
Björn Wergen
Re : Valsa, need help/literature
Yes, I have received them. Now I am happy for the rest of the year, thank you for the christmas present, Chris :D 

regards,
björn
Chris Yeates, 15-12-2011 23:03
Chris Yeates
Re : Valsa, need help/literature
you should have them now, Gernot

best wishes

Chris