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21-09-2017 08:27


Bonjour à tous,Ci-joint ce que je pense être un

20-09-2017 11:27

Edvin Johannesen Edvin Johannesen

This Hymenoscyphus (?) was found on Gymnocarpium d

10-09-2017 20:58


Sur laissée de sanglier, en pessière fraîche.

13-09-2017 08:09

Ethan Crenson

Hello,In the Bronx, Pelham Bay Park, New York, US.

20-09-2017 13:32

Viktorie Halasu Viktorie Halasu

Hello forum,last week I finally found a Smardaea b

16-09-2017 12:45

Lothar Krieglsteiner Lothar Krieglsteiner

... collected this week in Nature Reserve "Žofín

18-09-2017 23:14

Philippe Louasse

Bonsoir à tous, Les 9èmes Journées mycologique

12-08-2014 11:56

Zuzana Egertova Zuzana Egertova

Hello, in this ascomycete everything seems to fit

18-09-2017 17:54

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Estoy buscando este artículo: Med

21-08-2017 01:44

Ethan Crenson

In the Green Mountains of Southern Vermont, US. 

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Rosellinia literature
Chris Yeates, 26-08-2017 19:32
Chris YeatesBonsoir tous
does anyone have a pdf of Petrini et al. Sydowia 41: 257, 1989?

Jacques Fournier, 26-08-2017 19:57
Jacques Fournier
Re : Rosellinia literature
Hi Chris, you can download it for free at Sydowia's website.
Chris Yeates, 26-08-2017 21:08
Chris Yeates
Re : Rosellinia literature
Thanks Jacques

I thought that was the case, and I'm sure I am being really foolish here, but I can't see how . . . . I know that vols up to 30 are available on Cyberliber

But I can't see anything on the Sydowia homepage


Gernot Friebes, 26-08-2017 21:51
Re : Rosellinia literature
Hi, Chris,

this should work:

And see this page in case you need other Sydowia articles in the future:

Best wishes,
Jacques Fournier, 26-08-2017 21:52
Jacques Fournier
Re : Rosellinia literature
try this link:
all issues are available until 2007.
Enjoy Rosellinia!
Chris Yeates, 27-08-2017 18:59
Chris Yeates
Re : Rosellinia literature
Thanks both - worked fine
and it has confirmed that my collection is what would have been called Rosellinia britannica based on rather flattened perithecia, disappearing subiculum, straight, full length, germ slits, gel caps on spores, and size of spores and ascal tips.

I notice from Jacques' comments on a different AscoFrance thread that there can also be a gel presence along the straighter side of the ascospores. In a number of spores in my collection this was continuous with one or both 'gel caps' (see arrow in accompanying images.

Interestingly in this collection the spores tended towards the shorter end of the range - 20.5-25.6µm - and the ascal tips were longer (often up to 9-10µm long, and I took care not to distort them by too much pressure).

I note also that "R. britannica" has disappeared as a synonym of R. marrucciana (happily not as a result of Brexit!). Presumably Petrini had the opportunity to examine the type, as the protologue implies spores too short).

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Jacques Fournier, 28-08-2017 10:31
Jacques Fournier
Re : Rosellinia literature
great images Chris, you got all the important details! and good to see you did not "brexit" the forum!