Figure 2.

Variation in characters associated with the leaf-lobe oil bodies and leaf-lobule anatomy (A, B, E Frullania knightbridgei; C, D, F Frullania rostrata) A Oil bodies of the median region of the leaf-lobe, very large, (1)2–(3) per cell, collectively occupying over 75% of the cell lumen B Oil bodies of basal cells, a characteristic group of basal ocelli, each ocellus almost occupying the entire cell lumen C Oil bodies of median cells, 2–3 per cell, collectively occupying very small area of cell lumen, lacking any significant ornamentation and appearing as almost homogeneous oil droplets D Oil bodies of basal cells, 3–5 per cell E Semi straight cell walls toward apex leaf-lobule F Flexuose cell walls towards apex of leaf lobule. Scale bars A, B = 15 µm; C–F = 10 µm.