title: REPRODUCTION OF THE ARTICULATED CORALLINE AMPHIROA EPHEDRAEA(1).
abstract: Developmental events in the formation of reproductive structures in tetrasporangial, male, and female plants of Amphiroa ephedraea from South Africa were studied. An early step in the formation of a conceptacle is the elongation of a stratum of cortical cells, the cavity cells, to form a dome surmounted by an a cellular cap. Atrophy of the cavity cells to form a conceptacular cavity accompanies the subsequent development of reproductive structures. Tetrasporangial conceptacles differ from sexual conceptacles in that the reproductive cells develop in a peripheral ring and in the fact that the tissue lateral to these cells does not overgrow the fertile area. Finally, a comparison of some of the features of reproduction in A. ephedraea is made zuith. comparable features in other corallines.
authors.affiliation: Department of Botany, University of California, Berkeley, California 94720.
authors.forename: H W
authors.initials: HW
authors.lastname: Johansen