tetraspores's Usage Examples:

the tetraspores, and the sexual plant may only be reached after a series of such plants have been successively generated.

Nemalion is, however, one of those Florideae in which tetraspores do not occur.

In answer to this question a recent writer, Yamanouchi, states in a preliminary communication that he has found that in Polysiphonia violacea the germinating carpospores exhibit forty chromosomes, and the germinating tetraspores twenty chromosomes.

The asexual cells are termed tetraspores on account of the usual occurrence of four in each sporangium.

a, mother-cell of tetraspores.

Novel as this result may seem, the tetraspores of Florideae become hereby comparable with the tetraspores of Dictyota, to which reference will be made hereafter.

But it is clear that it becomes on this view increasingly difficult to explain the occasional occurrence of tetraspores on male, female and monoecious plants or the role of the carpospores in the life-cycle of Florideae.