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03-02-2014 09:08

Joop van der Lee Joop van der Lee

Found on horse dung.Examining an unknown asco I fo

03-02-2014 10:10

Garcia Susana

Hi all:More or less immersed yellow apothecia grow

02-02-2014 20:12

Björn Wergen Björn Wergen

Hi friends,I have some Corylus twigs here with a d

01-02-2014 23:16

Maren Kamke Maren Kamke

Hi everybody,I need your help with this pyreno. Su

01-02-2014 20:40

Alex Akulov Alex Akulov

Dear FriendsCan you help me with identification of

01-02-2014 16:39

Yannick Mourgues Yannick Mourgues

Bon, les deux autres espèces trouvées sur Rosa n

31-01-2014 13:13

Yannick Mourgues Yannick Mourgues

Found on Rosa.Ostiole fendu.Spores with 6-7 septa,

01-02-2014 12:05

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Il y a dans ce logiciel une foncti

31-01-2014 22:47

Joop van der Lee Joop van der Lee

Found on deer dung.Fruitbody and spores do look li

01-02-2014 13:15

Alex Akulov Alex Akulov

Dear FriendsAt first glance, sporulation of the fu

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Diatrype sp. (D. polycocca?)
Gernot Friebes, 17-04-2016 13:38
Hi,

this Diatrype was found by a friend and I promised to have a look at it even though the host is unfortunately unknown. However, the ascospores are interesting – there shouldn't be many species with ascospores that big (about 12–14(16) x 2.2–2.5(3) µm). In combination with the asci that appear to be Melzer-, using the key by Rappaz, I arrive at D. polycocca. If anyone has experience with this species or another suggestion I would be happy to hear your opinion!

Best wishes,
Gernot

(macrophotos are not mine)
  • message #42176
  • message #42176
  • message #42176
Jacques Fournier, 17-04-2016 14:40
Jacques Fournier
Re : Diatrype sp. (D. polycocca?)
Hi Gernot,
I never encountered this species but I agree with you it is very likely D. polycocca as described by Rappaz, even the geographical location fits well. I suggest you check the diameter of ostiolar necks, which is often a reliable character, much more than their height. A pity the host was not recorded.
Nice find!

Jacques
Gernot Friebes, 17-04-2016 17:40
Re : Diatrype sp. (D. polycocca?)
Many thanks, Jacques! I will do as you suggest and check the ostiolar necks.

Best wishes,
Gernot