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17-09-2025 19:43

Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

17-09-2025 16:14

Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

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Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

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Pyreno with striate ascospores
Maren Kamke, 20-07-2014 23:13
Maren KamkeHi everybody,
I found this species on Impatiens and Meconopsis. Perethecia immersed, 0,1 mm. Spores (10-7) 8,4 x 2,95 (2,5-3) µm, hyaline, finly striate. Asci uniseriate, up to 70x45 µm, IKL negative.
Thank you,
Regards Maren
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Gernot Friebes, 20-07-2014 23:18
Re : Pyreno with striate ascospores
Hi Maren,

probably a Phomatospora.

Best wishes,
Gernot
Alain GARDIENNET, 21-07-2014 07:23
Alain GARDIENNET
Re : Pyreno with striate ascospores

Yes, and probably P. berkeleyii.


Alain

Maren Kamke, 21-07-2014 07:24
Maren Kamke
Re : Pyreno with striate ascospores
Thank you Gernot and Alain,
it is P. berkeleyi, described on grasses. I was confused because I didn't find the mentioning of the striation of the spores.
Regards Maren
Alain GARDIENNET, 21-07-2014 08:23
Alain GARDIENNET
Re : Pyreno with striate ascospores

Please look at Mycotaxon 19, striation is well mentionned.


P. berkeleyii is usual on grasses, but it has been seen on other plants like Urtica.


Alain

Jaklitsch Walter, 21-07-2014 21:28
Re : Pyreno with striate ascospores
Hi,
the original host is potato stalks. The type species is not easy to grasp and there may be several similar-looking species.
Maren, could you be so kind and send me some good material for culturing? We would need this to solve a rather "ancient" question about the position of another species.
Thanks, Walter