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01-03-2024 18:06

Marc Detollenaere Marc Detollenaere

Dear Forum,On unidentified moss I found some small

01-03-2024 23:06

éric ROMERO éric ROMERO

Bonjour, Sur laissée de mustélidé indeterminé

02-03-2024 12:37

Bernard Declercq Bernard Declercq

Hello,I am looking for a pdf of following paper:Ud

29-02-2024 10:42

Charles Grapinet Charles Grapinet

Hello, Yesterday I found a Periconia on a dead Ae

22-10-2019 00:02

Yannick Mourgues Yannick Mourgues

On Fagus decorticated wood near a stream. Diametr

29-02-2024 16:43

Malcolm  Greaves Malcolm Greaves

Can someone suggest what this might be. It is deve

25-02-2024 19:50

Robin Isaksson Robin Isaksson

Found this one 3-4 times on resin in SwedenAsci IK

24-02-2024 15:15

Louis DENY

Bonjout ForumTrouvé à Belfort (400m altitude), s

27-02-2024 12:55

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia España reco

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Pezicula sp. on Pyrularia pubera - North Carolina, USA
Danny Newman, 24-11-2023 21:38
Danny Newman
higher resolution images available at inaturalist.org/observations/180579535

on standing, dead herbaceous central stems of Pyrularia pubera (see last image)

hymenial surface incrusted with abundant, dextrinoid (?), stellate crystals

Stage micrometer was recently lost, and so sadly I have no measurements at this time.
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Hans-Otto Baral, 25-11-2023 10:30
Hans-Otto Baral
Re : Pezicula sp. on Pyrularia pubera - North Carolina, USA
I remember to have seen in Pezicula such redbrown granules extruding from the hymenium (paraphyses) when adding Lugol. I assume you used Melzer. Important would be to check a KOH-pretreated probe with MLZ to see the deep blue apical rings (hemiamyloidity!).

For a species name I can say nothing.
Danny Newman, 25-11-2023 17:30
Danny Newman
Re : Pezicula sp. on Pyrularia pubera - North Carolina, USA
Zotto,

Thank you for the reply.  I use Lugol's when working with discomycetes whenever possible, at your long ago instruction, this being no exception.  I made sure that a plentiful supply of it would be available for our participants to use at the Korf Foray and subsequence Purchase Knob AscoBlitz.  One of the same dropper bottles provided for those events was used in the preparation of this sample.
Hans-Otto Baral, 25-11-2023 20:34
Hans-Otto Baral
Re : Pezicula sp. on Pyrularia pubera - North Carolina, USA
Great! I concluded from the seemingly negative ascus apex that it must be Melzer. I only remember one species with inamyloid asci - not sure which it was. All others react pretty pure red but after KOH deep blue.