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06-06-2015 15:51

Unknown ascomycete
Ibai Olariaga Ibarguren

Hello, I am struggling with a very characteristic

28-07-2015 20:40

Scutellinia setosissima?
Nedim Jukic Nedim Jukic

Hi, Not quite sure about determination of this on

28-07-2015 13:14

Diatrype 9807 ??
Leandro Sánchez Leandro Sánchez

Sur feuillus, stromata jusqu'à 5 mm de longeurKOH

28-07-2015 14:58

Fungus on Salix sp.
Jakob Schneller Jakob Schneller

The spores are about 15-18 micron. Asci 70-80 micr

28-07-2015 11:47

Hyaloscypha on herbaceous stem
Gernot Friebes

Hi,this was found on a herbaceous stem. The hairs

24-07-2015 17:11

Cordycipitaceae or Ophiocordycipitaceae (?) on Pardosa sp
Christopher Engelhardt Christopher Engelhardt

Hi.Found today in a swamp in N Germany on a dead P

27-07-2015 21:52

Lasiosphaeria or Hilberina
Per Vetlesen

Hallo This asco has grown in moist chamber on deb

27-07-2015 22:57

Strange tar spots on Betula
Steffen Lorenz

Hello,does anyone have an idea what species these

27-07-2015 20:41

Hypoxylon 9948
Leandro Sánchez Leandro Sánchez

Sur branche de feuillus (Salix au côté)Spores 9,

27-07-2015 21:32

Penzigioid Xylaria???
Dartanha Soares Dartanha Soares

Hi,Found this fungus on decorticated angiosperm wo

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Pulvinula convexella?
Rubén Martínez-Gil, 26-09-2014 13:48
Rubén Martínez-Gil

Hola a todos.


Subo unas fotos de una Pulvinula que encontramos en orilla de río dentro de hayedo.


Esporas esféricas de 16-20 micras. Dentro del asca, las esporas ya tienen bien formada una gran gútula con algunas más pequeñitas y que se mantienen en esporada libre. La foto es de esporada libre.


Creo que se trata de P. convexella, ¿Qué os parece?


Gracias por su ayuda.


Rubén

  • message #31447
  • message #31447
Hans-Otto Baral, 26-09-2014 15:08
Hans-Otto Baral
Re : Pulvinula convexella?
A small correction: The ascus base is furcate and does not form croziers. Croziers are defined as forming a complete circle surrounding a perforation.

P. convexella seems to be the current name for P. constellation. Also P. hamastigma seems to be the same (Boud. Pl 406). This has the more yellow-ochre colour of your fungus. I have a folder in Cubby of Pulvinula named "yellow-ochre" (in Ascodesmidaceae) which might fit your fungus.

The spores are originally more multiguttulate (see also Boudier's plate).

Zotto
Rubén Martínez-Gil, 26-09-2014 16:07
Rubén Martínez-Gil
Re : Pulvinula convexella?

Gracias por la corrección y por su comentario, Zotto.


Saludos


Rubén

  • message #31451