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11-05-2014 17:37

hannie wijers

Hello, on haredung I found this Coniochaeta (I th

01-03-2010 20:42

Beñat Jeannerot Beñat Jeannerot

Bonjour à tous, je viens encore vous embêter ave

11-05-2014 00:54

Stip Helleman Stip Helleman

Hi to all,yesterday I found this beatifull species

11-05-2014 01:25

Yannick Mourgues Yannick Mourgues

Bonsoir.Je cherche :Kotlabaea aurantiaca (Bres.) B

05-05-2014 16:33

Salvador Tello

Hola a todos.Tengo unas Xylarias de 0,5-1,5 x 0,1-

10-05-2014 19:46

Salvador Tello

Hola a todos.Creo que estos hongos son Tricharina

09-05-2014 13:19

Enrique Rubio Enrique Rubio

Hi to everybody On last week-end I have found som

07-05-2014 08:00

Peter Welt Peter Welt

Glückwunsch zum Geburtstag, Happy Birthday, Joy

28-03-2014 16:44

Vasileios Kaounas Vasileios Kaounas

Found in Attica Greece, 27-03-14, in soil, in fore

08-05-2014 21:07

Bometon Javier Bometon Javier

Apotecios hasta 1mm, en hoja caduca creo que de Fa

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Pyrenopeziza rubi?
Juuso Äikäs, 13-01-2022 16:33
An old Pyrenopeziza finding from my archive:

These were growing on a dead Rubus idaeus cane at the turn of June and July 2020. 

There were just a few pics of the spores, asci in IKI and excipululm. The spores measure 7.9 - 10.4 × 2.1 - 2.6 µm.

Is this enough to determine this as P. rubi or are there other alternatives?
  • message #71426
  • message #71426
Hans-Otto Baral, 13-01-2022 17:31
Hans-Otto Baral
Re : Pyrenopeziza rubi?
P. rubi or P. escharodes - i cannot say. Both are described with marginal, appressed hairs.

There is an interesting iodine reaction when pretreated with KOH and wahsed with water: Lugol and probably also Melzer give a distinct blue at the margin!  I am not sure if this distinguishes rubi from escharodes.
Juuso Äikäs, 13-01-2022 18:10
Re : Pyrenopeziza rubi?
Ok, thanks for the info! I'll have to keep that in mind until I find this again.