Fig. 1.

K. daigremontiana leaf plantlet development. (A) K. daigremontiana plant. (B) Plantlets. (C–E) Histology of an early (C), later (D), and heart-like (E) embryo plantlet. (F–H) SEM images of heart-like (F) and cotyledon-like (G) plantlets. (H) Plantlet showing basal “hypocotyl.” (I) Older plantlet showing adventitious roots (arrows). (J) Abscission scar on leaf-pedestal (arrow) after plantlet detachment (star). ad, adaxial leaf; ab, abaxial leaf; bhyp, basal “hypocotyl”; c, cotyledon-like leaves. [Scale bars: 50 μm (C–F); 200 μm (G–J).]