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28-04-2025 12:51

Thomas Flammer

Substrate: Angelica sylvesrisSpore mass: 8.4 - 11.

28-04-2025 12:50

Thomas Flammer

Substrate: Angelica sylvesrisSpore mass: 8.4 - 11.

28-04-2025 12:50

Thomas Flammer

Substrate: Angelica sylvesrisSpore mass: 8.4 - 11.

14-04-2025 15:11

Lennert Gees

Greetings!For my master's dissertation I work on c

27-04-2025 15:54

Martin Bemmann Martin Bemmann

Can somebody provide this article from a Leningrad

26-04-2025 16:01

Jacques Fournier Jacques Fournier

J'ai le regret d'informer les membres du forum qui

26-04-2025 07:15

Dragiša Savic

Hello everyone,the lichen is Candelariella aurella

26-04-2025 19:32

Francois Guay Francois Guay

I found these small Arachnopeziza sp. growing on d

25-04-2025 22:48

Gustaf Fredell Gustaf Fredell

Hello,I hope everything is going well. I couple mo

18-04-2025 23:16

Robin Pétermann Robin Pétermann

Bonjour, Voici une probable Mollisia, genre que j

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possibly Rutstroemia
Ethan Crenson, 09-11-2022 01:34
Hello all,

Found recently in New York City on the stem of an oak leaf.  There was only one fruiting body so I didn't have much to work with. It appears to be a dark, velvety brown stipitate ascomata with a fringe of light colored hairs at the margin. 

Spores are reniform, the bend in the spore in the last 1/3 of its length, 12-14.5 x 5.5-6.3µm. Asci with croziers, about 112 x 13µm, IKI+.  There are a profusion of brown paraphyses which are septate and about 3µm in width. 

The spore morphology resembles what i have seen for Rutstroemia sydowiana, but the colors of the apothecium are far more dark than the images I have seen of that taxon.

Any help would be appreciated.

Ethan
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Ethan Crenson, 09-11-2022 06:09
Re : possibly Rutstroemia
Thank you Ingo!