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04-07-2022 15:21

Jason Karakehian Jason Karakehian

Hi everyone, I am looking for a specimen of Propo

03-07-2022 13:13

ruiz Jose antonio

Hola a todos,en resto de herbáceas,en zona muy h

04-07-2022 09:40

Castillo Joseba Castillo Joseba

recolectado en tierra en bosque de abetosEs una ma

23-06-2022 08:52

Josep Torres Josep Torres

Hola.Un pequeño discomiceto sobre la superficie d

01-07-2022 16:02

Mirek Gryc

Hello everyone.I would like to consult with you re

28-06-2022 20:12

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I repeatedly collect a foliicolous Ascobolus

01-07-2022 15:28

Thomas Læssøe

https://svampe.databasen.org/observations/10267081

01-07-2022 15:18

Thomas Læssøe

https://svampe.databasen.org/observations/10278120

29-06-2022 08:43

Mirek Gryc

Hello everyone Because the mushroom seems to be v

29-06-2022 13:19

Andrew N. Miller Andrew N. Miller

Does anyone have this as a PDF?Munk A (1965). On s

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On Pseudotsuga
Enrique Rubio, 14-05-2022 21:03
Enrique RubioThese sessile or subsessile apothecia, more or less turbinate, allways isolated, never in groups,  0.2-0.7 mm in diameter and blackish-brown in colour, erumpent through the bark of branches fallen to the ground in a plantation of Pseudotsuga menziesii at 1300 m of altitude in northern Spain .
The apothecia have no ionomidotic reaction in KOH and the asci form very scanty primary ascosspores, difficult to see, but probably broadly ellipsoidal or subspherical, and finally the asci are filled with a multitude of small, subcylindrical to nearly allantoid, hyaline ascoconidia.
From the appearance of the primary spore it could perhaps be Tympanis tsugae Groves, which may now belong to Claussenomyces or Vexillomyces.

What do you think?

  • message #72742
  • message #72742
  • message #72742
  • message #72742
Hans-Otto Baral, 14-05-2022 21:21
Hans-Otto Baral
Re : On Pseudotsuga
Hi Enrique

not sure what Tympanis tsugae is but surely this is a Tympanis, not a Vexillomyces. The globose non-septate spores which form a short germ tube inside the living asci are diagnostic. Also the red-brown excipulum does not fit a Vexillomyces.

Ouellette & Pirozynsky used the germination pattern as species marker, but Tympanis is a difficult genus, probably not really settled.

Zotto
Enrique Rubio, 14-05-2022 21:26
Enrique Rubio
Re : On Pseudotsuga
Thank you, Zotto
When studying this paper and although I do not see the germination of the primary spore at all well, I turned to this species. But, as you, I'm not sure.
Enrique Rubio, 14-05-2022 21:37
Enrique Rubio
Re : On Pseudotsuga
By the way, where is your folder on Tympanidaceae?