Fig. 7

Cystocarp development of Scinaia furcellata. a Three-celled carpogonial branch. b Carpogonial branch showing the basal cell (B) and the hypogynous cell (H) with initial lateral division and the carpogonium (C). c Surface view of the hypogynous cell (H) showing the one-celled branch (SF1) and two-celled branch (SF2) sterile filaments. d Developed carpogonial branch showing the initial pericarp (arrowhead), the branched hypogynous cell (H) and the carpogonium (C). e Immature cystocarp showing initial gonimoblast (arrowhead) arising directly from the carpogonium (C). f Developing cystocarp showing gonimoblast filaments (arrowhead) and not fused hypogynous branches (arrow). g Fusion cell of mature cystocarp with evident hypogynous branches (arrowheads)