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Eumycetozoa

All known members fruit, either sorocarpically (Dictyostelia), or sporocarpically (Myxogastria, Protosporangiida); with a life cycle having a single haploid amoeboid state (Dictyostelia); or a life cycle with a bikont ciliated amoebae state that gives rise to a non-ciliate obligate amoeboid state from which sporocarps develop (Myxogastria and Protosporangiida); ciliated amoebae of myxogastrids and protosporangiids and amoebae of dictyostelids flat and form wide pseudopodia with acutely pointed subpseudopodia and no pronounced streaming of the granular cytoplasm; where sex is well studied, the zygote cannibalizes haploid amoebae.

These are true slime molds, divided into the myxomycetes, dictyostelids, and protostelids. The myxomycetes are plasmodial slime molds. These fungus-like organisms have a life cycle that involves two very different trophic (feeding) stages: uninucleate amoebae, with or without flagella, and plasmodia.

A plasmodium is a distinctive multinucleate structure that typically occurs in cool, moist, shady places like stumps and leaf litter on the forest floor. Under favorable conditions, the plasmodium gives rise to one or more fruiting bodies containing spores that are for most species dispersed by the wind and complete the life cycle by germinating to produce the uninucleate amoeboflagellate cells.
There are approximately 1000 recognized species of myxomycetes.

slime mold slijmzwam myxomycetes
Leocarpus fragilis?, Ardennes, Belgium
slime mold slijmzwam myxomycetes
Dwingeloo, Netherlands
slime mold slijmzwam myxomycetes
Netherlands
slime mold slijmzwam myxomycetes
Netherlands
slime mold slijmzwam myxomycetes
Netherlands
slijmzwam slime mold myxomycetes Patagonia
Chili, 2017
slime mold slijmzwam myxomycetes
Groeneveld, Netherlands
slime mold slijmzwam myxomycetes
Groeneveld, Netherlands
slijmzwam slime mold myxomycetes
Groeneveld, Netherlands
slime mold slijmzwam myxomycetes
Groeneveld, Netherlands
slime mold slijmzwam myxomycetes
Groeneveld, Netherlands
Recent posts

Organic-walled species

Specimen with an optical cross-section of the peduncle (left) Organic-walled species Diagnosis: Multinucleated organic-walled monothalamous foraminifera. Test spherical to oval shaped, with a hyaline, flexible,

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Velamentofex tyrolensis

V. tyrolensis, two specimens Velamentofex tyrolensis Völcker and Clauß, 2020 April 2022, I found two specimens in a sample from the pond in Crailoo, Netherlands. I could

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Raphidiophrys spec. nov.

Raphidiophrys n. sp. Raphidiophrys n. sp. Diagnosis: Plate-scales canoe-shaped, elongated, with tapering, rounded poles, slightly curved upwardly. Light microscopically, these plate-scales show a clear rim;

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Lacogromia spec. Naardermeer

Lacogromia sp., Naardermeer, the Netherlands, 2022 (n=nucleus) Lacogromia sp. Six living specimens were found in an old sediment sample from a freshwater ditch in nature

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Sphenoderia rhombophora

S. rhombophora , after Bonnet, 1966 Sphenoderia rhombophora Bonnet, 1966 Diagnosis: Test hyaline, ellipsoidal, very slightly compressed. Fundus relatively narrow. Pseudostome largely truncated. Neck very

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Sphenoderia ovoidea

S. ovoidea , after Jung, 1942 Sphenoderia ovoidea Jung, 1942 Diagnosis: Shell with four layers of plate-scales. Distinguished from S. fissirostris by the ovoid tapering

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Sphenoderia truncata

S. truncata , after Van Oye, 1949 Sphenoderia truncata Van Oye, 1949 Diagnosis: Shell smooth and diaphanous, with usually pentagonal, sometimes hexagonal, inconspicuous plates. The

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Nebela gimlii

N. gimlii, from Singer and Lara, 2015 Nebela gimlii Singer and Lara, 2015 Diagnosis: Test wide pyriform or drop-shaped, laterally compressed, with a protruding narrow

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Sphenoderia, with granules

Overview Sphenoderia S. compressa S. fissirostris S. labiata S. lenta S. macrolepis S. minuta S. ovoidea S. rhombophora S. sphaerica S. splendida S. truncata

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Nebela overview

Nebela overview N. acolla N. aliciae N. aliciae N. barbata N. bohemica N. carinatella N. collaris N. flabellulum N. gimlii N. golemanskyi N. nebeloides N.

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