Hedriocystis minor
from Siemensma, 1991

Hedriocystis minor Siemensma, 1991

Diagnosis: Shell spherical or ovoid, smooth, tapering towards the stalk; some small pores; shell hyaline, colorless or faint yellow; cell body doesn’t fill the shell completely; nucleus subcentrally; one contractile vacuole; axopodia not numerous, fine; no swarmer observed.

Dimensions: shell 8-13 µm, stalk up to 30 µm long.

Ecology: fresh water, on submerged waterplants, Sphagnum; the Netherlands, Austria.

Remarks: rare, but easily overlooked, because of its small size.

Hedriocystis minor
from Crailoo, the Netherlands
Hedriocystis minor
from Tirol, Austria
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