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18-11-2018 18:41

Sven Heinz Sven Heinz

Hello together, does anyone have any idea what th

18-11-2018 10:49

PASCAL DUBOC

Bonjour j'ai aperçu ces minuscules asco en forme

14-11-2018 19:07

Andgelo Mombert

Bonsoir,Sur bois mort de feuillu. Apothécies sess

17-11-2018 08:51

Tanja Böhning Tanja Böhning

Bonjour,   J´ai un Asco sur mousse. Il mesure

17-11-2018 18:56

Pintos Angel Pintos Angel

Hello anybody has?Fasciatispora bicincta (Syd. &am

17-11-2018 13:23

Castillo Joseba Castillo Joseba

Me mandan el matgerial en seco desde GaliciaEn mad

17-11-2018 16:07

Lothar Krieglsteiner Lothar Krieglsteiner

... collected 29.10.2018 in the Biosphere Reservat

17-11-2018 12:09

Castillo Joseba Castillo Joseba

Me envian este material seco desde GaliciaCreciend

16-11-2018 19:57

Viktorie Halasu Viktorie Halasu

Hello forum,I'm looking for some protocol how to s

16-11-2018 20:32

Marc Detollenaere Marc Detollenaere

Hello forum,   Could someone help me with the f

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Diaporthe?
Stoykov Dimitar, 16-04-2018 17:01
Stoykov DimitarHello,

Two days ago I found this interesting eutypoid fungus growing on ?possibly Alnus, or other similar thin twig of broadleaf shrub.
It has obviously protuding necks (up to 10 per protrusion) up to 1.7 x 0.3 mm in size. Asci (55-)-80-90 x (8-)10-13 µm, Spores ca 13.5-14.5(-17) x 3-3.5(-4) µm, fainly septate, small guttulate.


Regards,
Dimitar

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Stoykov Dimitar, 16-04-2018 17:53
Stoykov Dimitar
Re : Diaporthe?
I have checked Wehmeyer's monograph  (1933), and as under Melzer's reagent there is an apical annulus seen; spores are sometimes curved to slightly inequilateral, faintly septate, it seems to be close to Cryptodiaporthe hystrix on Acer, Alnus viridis (long-fusiform spores), and C. hranicensis (if grown on Tilia).
Peter Püwert, 16-04-2018 23:47
Peter Püwert
Re : Diaporthe?
Hi, why not Amphiporthe/ Diaporthe leiphaemia on Quercus ?
Greetings Peter.
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Stoykov Dimitar, 17-04-2018 09:33
Stoykov Dimitar
Re : Diaporthe?
Hi, Peter!
Interesting proposal, but the substratum seems to be dry twig of Alnus.
The beaks ale elongate and somewhat flattened, spores are mostly 2.5-3(-4) µm 
wide.
Cryptodiaporthe hystrix (=Apiognomonia hystrix, according to Sogonov et al. 2008, Stud. in Mycol.).
Regards,
Dimitar