Fig. 2. Semi-thin sections and SEM of laterne seedlings. (A-G) Longitudinal sections of laterne with emerging primary leaf primordium. (H-L) Cross-sections of laterne showing the apical cavity (arrow) harbouring small densely stained cells. (M-Q) SEM of different laterne seedlings. Generation of variable numbers of leaf primordia (arrowheads; N,O) with young trichomes (P,Q; black and white arrows, respectively). Scale bars: 100 µm in A-P; 10 µm in Q.