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16-02-2019 17:02

Big spores
Per Marstad Per Marstad

I found this on desiduous wood, in Norway.Diameter

15-02-2019 20:44

Rhizodiscina lignyota?
Edvin Johannesen Edvin Johannesen

Hi! These black, semi-immersed/erumpent apothecio

16-02-2019 11:02

Patellaria atrata (Lecanidion atratum)
Riet van Oosten Riet van Oosten

Hello, Found by a mushroomfriend on dead stem of

15-02-2019 20:32

Rutstroemia (?) sur brindille de feuillu
BERNARD CLESSE BERNARD CLESSE

Pouvez-vous m'aider à identifier ce Rutstroemia (

11-02-2019 12:32

Aleuria aurantia ?
Stephen Mifsud Stephen Mifsud

Can this be identified from the macro-photos alone

15-02-2019 11:03

Nectria cinnabarina vs. N. dematiosa
Edvin Johannesen Edvin Johannesen

Hello! Can anyone tell me how to distinguish Nect

12-02-2019 15:49

Geoglossum subumbratile?
Martzuku Eleni

In decaying leaves of castanea and olive tree and

14-02-2019 22:15

¿Rutstroemia paludosa?
Salvador Tello

Hola.Este hongo lo recogí en agosto del 2018 en S

14-02-2019 22:32

Patellaria ? Black apothecioid with white subiculum
Ethan Crenson

I found these minute black apothecioid ascos on ba

14-02-2019 21:00

Asco sur cône d'épicéa
Patrice TANCHAUD

Bonsoir, sur cône d'épicéa. Apothécie 250 µm

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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