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16-11-2014 20:25

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Dear Forum,Today I found growing on soil in additi

16-11-2014 04:09

John Plischke John Plischke

Does anyone know of any papers that talk about Hyp

16-11-2014 15:33

Yannick Mourgues Yannick Mourgues

Bonjour à tous.J'ai trouvée sur branche morte dÃ

16-11-2014 20:23

Ueli Graf Ueli Graf

Hallo,hat das jemand von euch?OHENOIJA E. (1995) -

16-11-2014 18:00

Beñat Jeannerot Beñat Jeannerot

Adio to all,Anyone has a good mail to join Niek Gr

11-11-2014 15:51

SYLVAIN ARD

Bonjour,Quels sont les ouvrages de référence et

14-11-2014 17:24

Ralph Vandiest Ralph Vandiest

Hello, In a grasland I found this very tall speci

14-11-2014 19:30

Salvador Tello

Hola a todos.Estoy buscando el siguiente artículo

13-11-2014 19:19

Alain BRISSARD

Bonsoir à tous Pouvez-vous confirmer ou infirmer

13-11-2014 20:18

Garcia Susana

Hello:I have collected this ascomycete on a twig f

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Tubercularia
Bernard Declercq, 10-12-2014 16:33
Bernard DeclercqHello,

I wonder if this collection on branch of Acer pseudoplatanus is Tubercularia vulgaris.
Data:
Conidiomata in effuse colonies, long stipitate, 1,3-1,6 mm high, 0,2 mm diam., black with white pruinae, conidia aggregated in an orange subglobose, slimy head of 0,5 mm diam., rarely branched.Conidia oblong-ellipsoid, 4-7x2,5-3 µm, biguttulate, smooth, hyaline, originating from phialides with collarette.
Most Nectria cinnabarina collections collected in out region on Acer have pink sessile to subsessile conidiomata.
Your comments are welcome.

Bernard
  • message #32608
  • message #32608
Walter Gams, 10-12-2014 17:33
Walter Gams
Re : Tubercularia
Cherr Bernard,
This is obviously not T. vulgaris (official name now only Nectria cinnabarina), but a species of Stilbella. You can identify this w ith Seifert, Studies iin Mycology 27, 1985. But you will need some further observations, especially marginal cells of the stipe and conidiogenous cells (in Tubercularia vulgaris these would have a characteristic acro-pleurogenous pattern, i.e. several short lateral branches in the conidiophore producing conidia).
Cheers  Walter
Christian Lechat, 10-12-2014 17:38
Christian Lechat
Re : Tubercularia
Salut Bernard,
ce qui est certain c'est que ce n'est pas N. cinnabarina et ce n'est peut-être pas une Hypocreales

Christian
Bernard Declercq, 10-12-2014 19:43
Bernard Declercq
Re : Tubercularia
Dank je wel Walter, voor je reactie; merci Christian pour ta réaction.

Unfortunately I am missing following probably most interesting work:
Seifert, K.A. 1985. A monograph of Stilbella and some allied Hyphomycetes. Studies in Mycology. 27:1-235.
Does anyone have this study for me or is this somewhere available on the internet?
Thanks in advance,

Bernard
Walter Gams, 10-12-2014 20:27
Walter Gams
Re : Tubercularia
click on http://www.cbs.knaw.nl/index.php/studies-in-mycology/360-studies-in-mycology-no-27  and then fulll text.
Groetjes   Walter
Bernard Declercq, 11-12-2014 11:56
Bernard Declercq
Re : Tubercularia
Great!
I observed a stipe surface composed of blackish textura porrecta covered by hyaline, verrucose to echinulate, clavate to subglobose cells 3-5 µm wide and with walls up to 1 µm thick
According Seifert (1985), this should be (Stilbella clavulata or) the anamorph of Stilbocrea gracilipes (Tul. & C. Tul.) Samuels & Seifert.
Thanks once again, Walter.
Et merci aussi à Christian qui, grace à Ascofrance, rend ces échanges fructueuses possible.

Bernard
Peter Wilberforce, 11-12-2014 15:54
Re : Tubercularia

Hi Bernard,


If you have trouble finding the Siefert paper, please email me as I have the full thing as a pdf


Peter