FIGURE 3 in Transfer of the monospecific genus Nienburgella (Delesseriaceae, Rhodophyta) to Phycodrys, based on morphological and molecular evidence

FIGURE 3. Nienburgella angusta (A.D. Zinova) Perestenko from the eastern coast of South Korea. Female (A–N) and tetrasporic (O–Q) reproductive structures. A–G. Development process of immature procarp (cb1–3: cell numbers of carpogonial branch; cbi: carpogonial branch initial; cbs: cells in carpogonial branch; cp: carpogonium; sc: supporting cell; st1: first sterile-cell group; st1i: first sterile-cell group initial; st2i: second sterile-cell group initial; tr: trichogyne). H. Mature procarp (st2: second sterile-cell group). I–J. Superior (I) and inferior (J) surface views of same point of post-fertilized stage (au: auxiliary cell). K–L. Cross-section through an immature cystocarp (fu: fusion cell; g: gonimoblast cell; gi: gonimoblast initial). M. Cross-section through a mature cystocarp (ca: caposporangia). N. Surface view of mature cystocarp (cs). O–P. Surface views of tetrasporangial sori (t: tetrasporangia; ts: tetrasporangial sori). Q. Cross-section through a tetrasporangium (ti: tetrasporangial initial). Scale bars: N, O = 2 mm; P = 500 µm; M, Q = 200 µm; K, L = 50 µm; A–J = 30 µm.