Fig. 1.

Organography of Sengelia radicans. (A) Intertwined leafy stems from a stem mat layer. Note thin central vascular strand and small triangular leaves. Scale bar = 20 mm. KU D1806. (B) Horizontal root-bearing axes with fine lateral roots. Note parallel orientation of the axes. Scale bar = 5 mm. HPH 28. (C) Dichotomously branching root showing three orders of branching. Note fine central vascular strand. Subtending root-bearing axis not visible on the bedding plane shown. Scale bar = 5 mm. KU D1616b.