Leptomyxa arborea  Berney, Geisen et Burberg, 2016

Diagnosis: Flattened, expanded highly branched and reticulate cells, 50- >1000 µm across. Multinucleate, nuclei of vesicular type.

Ultrastructure: SSU rDNA sequence of the type strain (isolated from UK) contains signatures TCT GGA CCT TCT TTG AGG starting from position 180; GGC CCA AAA GGC starting from position 224 and AGA TGA ATA TTC TAT starting from position 1388.

Differential diagnosis: Resembles  L. reticulata in size and general appearance, but usually is more ramose and expanded than the latter species. In locomotion it is usually more “tree-like” than L. recticulata, strongly branching in anterior part with usually one single posterior end. However these two species are very similar; the only ultimate differentiating character is the SSU sequence.

Ecology: Type location: Grass roots from a meadow outside the Biocenter at the University of Cologne, Germany.

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