Auxospore
noun
a diatom cell before its silicaceous cell wall is formed
historical examples
in the figure one valve alone of the auxospore is seen, the opposite valve not being in focus.
the diatomaceae of philadelphia and vicinity charles sumner boyer
in conjugation, two cells open and secrete a gelatinous m-ss from which an auxospore is formed.
the diatomaceae of philadelphia and vicinity charles sumner boyer
the sagittal plane of the valve of the auxospore is at right angles to the plane of the valve of the mother cell.
the diatomaceae of philadelphia and vicinity charles sumner boyer
the valves of the auxospore are usually more or less arcuate, as in cymbella, to which the genus is closely allied.
the diatomaceae of philadelphia and vicinity charles sumner boyer
on the diminution in size having reached a limit in any species, the maximum size is regained by the formation of an auxospore.
encyclopaedia britannica, 11th edition, volume 8, slice 4 various
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