What is the ploidy of the spores

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What is the ploidy of structures in Hornwort (Antherocerophyta) sporophytes? Are they all diploid? Specifically, what is the ploidy of the spores and the plodiy of cells in the columella of a hornwort sporophyte? Thanks in advance.

The columella is the middle vertical structure and the cells (grouped in tetrads) are the purplish circles around the columella.

Reference no: EM1396940

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