Fig. 1.

Seedling of Trithuria submersa (SEM). (A) Entire seedling with pericarp and seed coat attached. (B) Detail of (A). (C) The same seedling separated from pericarp; note that the operculum remains attached to the inner surface of the pericarp. Labels: e, endosperm; fol, foliage leaf; op, operculum; per, pericarp; rt, root (note: fragments of agar on which the seedling was cultivated remain attached); sc, seed coat; ss, sheathing structure; st, stigma remaining attached to the fruit apex. Scale bars: A = 1 mm; B, C = 250 µm.