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28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

29-04-2026 08:01

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig attached to small tree of Citrus auran

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

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Dark Apothecia
Malcolm Greaves, 01-11-2018 17:53
Malcolm  Greaves
A group of these were found on a rotting Ilex branch. I was looking for Mollisia subglobosa but this obviously is not the one. The Apothecia were up to 10mm across dark olivaceus brown with a short stout stalk. The spores were everything from ellipsoid to almost spherical. They had lots of bubbles when in water but only one when in Meltzers. 8-14 x 8-10 The paraphyses (some forked) were also filled with bubbles which seemed to react to Meltzers as did some elements of the outer surface of the apothecia.

Can anyone help

Thanks

Mal
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Hans-Otto Baral, 01-11-2018 18:31
Hans-Otto Baral
Re : Dark Apothecia
This is a wonderful collection:

Bulgariella pulla, a species that was recently found to belong in Helotiaceae near Phaeohelotium-like Australasian species (Helotium elaeocarpi, Lanzia ovispora).

The spores contain lots of oil drops, but what you get in Melzer's are DeBary bubbles, a response to drought because chloral hydrate extracts the water from the spores, and rigid spore walls that do not collapse are the reason for this gaseous phase in the spores which is probably something like a vacuum. If you let the spores dry and mount them in (!) immersion oil, you should see the same large bubble in each spore.

Zotto
Malcolm Greaves, 02-11-2018 00:19
Malcolm  Greaves
Re : Dark Apothecia
That's great. Thanks for the Id and information. Quite a rarity in the U.K.
Mal