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16-09-2016 17:11

Alain BRISSARD

Rebonjour Dans le cas présent je pense qu'il peu

16-09-2016 17:05

Alain BRISSARD

Bonjour à tous Toujours indécis par manque d'ha

16-09-2016 20:37

Patrice TANCHAUD

Bonsoir,récolte sur crottin. Spores 15,5-18 x 10,

16-09-2016 20:41

Quijada Luis

Hi all, somebody has the following manuscript in

16-09-2016 15:22

Cvenkel Miran

Host: BetulaThe brown stuff N.c. anamorph, Tubercu

15-09-2016 21:05

PASCAL DUBOC

Bonsoirtrouvé cette colonie de minuscules cupules

15-09-2016 14:45

Marja Pennanen

Hello,I have found some scanty yellow Hymenoscyhus

14-09-2016 20:29

François Valade François Valade

hellolast saturday I found on wet wood (maybe Carp

11-09-2016 10:38

Patrice TANCHAUD

Bonjour,récolte sur sol en tourbière, parmi les

11-09-2016 23:51

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que enco

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Karstenia?
Per Vetlesen, 10-09-2016 19:28
Hi everybody
It was found on bark of Ulmus glabra in Stange, Norway. I think it is Karstenia, but I can't find any that fits 100%. It seems to be in between K macer and K rhopaloides with either too wide or too narrow spores, but I think it is closer K rhopaloides?
Spores: (6) 7 – 8 (11) septate; (34.2) 40.7 - 49.8 (56.9) × (3.8) 4 - 5.2 (5.3) µm; Q = (7.7) 8.6 - 11.7 (12.4) ; N = 24; Me = 45.6 × 4.7 µm ; Qe = 9.9
The IKI color reaction is stronger than the pic indicate.

Thanks in advance for help!
Regards
Per

  • message #44866
  • message #44866
  • message #44866
  • message #44866
Hans-Otto Baral, 11-09-2016 11:43
Hans-Otto Baral
Re : Karstenia?
This is really difficult. It resembles also the description of K. lonicerae in Sherwood 1977: 55 but your spores are longer. So K. rhopaloides seems to be the best choice.
Per Vetlesen, 11-09-2016 13:12
Re : Karstenia?
Thank you very much for your opinion. Yes, Karstenia is very difficult; I also have 2 more collections, found on Juniperus communis in 2013 and 2015, I'm struggling with. I'll have a new look at them when I get time and maybe ask for help here on AscoFrance.