I found an interesting myxomycete, rather abundant on fallen leaves of Juglans regia and few other exotic trees. Initially, they looked like small flour sacks or pouches, quite large (2mm perhaps), and quite cute. On further development, there were some slimy droplets oozing (maybe damaged during transport) and finally, they solidified into irregular flattened disks and dehisced in a particular way. Must be a Diderma sp. and maybe globosum or more likely D. hemisphaericum. However, the latter should be distinctly stalked! On careful examination, the myxocarps were subsessile (neither distinctly stipitate nor sessile). For me, it looks more like hemisphaericum unless there are other species that I have not considered. I am aware micro is needed but for this I might be lucky to decrease the workload!
Diderma sp. (hemisphaericum?) on leaves of Juglans and other deciduous trees
- Steve_mt
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Es gibt 9 Antworten in diesem Thema, welches 2.421 mal aufgerufen wurde. Der letzte Beitrag () ist von Steve_mt.
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Steve_mt
Hat den Titel des Themas von „ Diderma sp. (hemosphericum?) on leaves of Juglans and other deciduous trees“ zu „ Diderma sp. (hemisphaericum?) on leaves of Juglans and other deciduous trees“ geändert. -
Hallo,
Diderma hemisphaericum - that's right.
The sporocarps must always have an short, white stalk containing limestone.
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Hey Steve, my english is not the yellow from the egg (
little joke) but your found is very cool! I've never seen this before, thx for sharing !!!I have a Juglans tree in my garden, it is very young, but who knows, in 20 years, maybe I can find this myxos, too ! (with my Rollator
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Hallo Hilmgridd,
Diderma hemisphaericum sind schon hübsche Schleimis. Erinnern mich immer an weiße Reißzwecken.
Sie wachsen aber nicht immer zwingend an Juglans, sondern sie sind Laubbewohner, die an verschiedenen Laubbäumen in der Laubstreu vorkommen. Man muß dazu immer mal im Laub wühlen, es darf nicht zu trocken liegen aber auch nicht zu klatschnaß oder verklumpt sein. Meist wachsen die laubliebenden Schleimis an der Unterseite der Blätter, wo es feuchter und geschützter ist. Manchmal kann man sie auch im Winterhalbjahr, wenns nicht zu kalt ist, finden.
LG Ulla
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hilmgridd , dont worry about the English, what's important is that we communicate .... (although I couldn't get the joke about the egg lol!). I attach two more photos of this Diderma species from a previous collection which was more typical (well-developed stipe) for you to admire. Yes it is a lovely slime mold looking like tiny satellite radar discs.
Agreed eith LG Ulla, the species is not specific to Juglans (I found it earlier on carob leaves and Rubus ulmifolius decaying stalks) but I think it requires a lot of humidity and likely a thick layer of leaf detritus.
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Hey Steve, thx for more fotos !!! I like these little " satellite radar discs" !!!
We have a lot of snow here, so I will look to find some of them in spring ! The substrat you found them of is not always leaves? The first one is a stalk?
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Hi Steve,
German "nicht das Gelbe vom Ei" was translated word by word. It is (used to be?) a quite often used figurative expression for Eng. "it's not exactly brilliant".
As there is quite a lot of languages around Malta - is English your (only) native one?
Best, Bernd