24-11-2023 21:38
Danny Newman
higher resolution images available at inaturalist.
24-11-2023 12:05
Lothar Krieglsteiner
... found 19.11.23, Schwäbische Alb, on thin dead
24-11-2023 12:21
Lothar Krieglsteiner
.. 19.11.23, Schwäbische Alb.The fotos are made i
24-11-2023 06:55
Danny Newman
more and higher resolution images available at ina
24-11-2023 21:10
Danny Newman
higher resolution images available at inaturalist.
24-11-2023 20:34
Danny Newman
more and larger resolution images available at ina
23-11-2023 09:59
Lothar Krieglsteiner
... found 19.11.23, Schwäbische Alb, on still att
23-11-2023 10:07
Lothar Krieglsteiner
.. on standing bush, Schwäbische Alb (Germany), 1
23-11-2023 11:55
Robin Isaksson
HiFound on calcareus ground between thallus of Ps
23-11-2023 10:27
Lothar Krieglsteiner
... 19.11.23, Schwäbische Alb.the fourth foto is
Pezicula sp. on Pyrularia pubera - North Carolina, USA
Danny Newman,
24-11-2023 21:38
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.
Hans-Otto Baral,
25-11-2023 10:30
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
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
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.