Fig. 3.

Outer (a) and inner (b) glandular cell. Cells contain a large vacuole surrounded by a layer of cytoplasm. The main part of the cytoplasm, including the nucleus and the organelles, is concentrated along the interior surfaces of the cell. The adjacent lateral walls as well as the peripheral tangential wall possess only a thin layer of cytoplasm with few organelles, mainly ER and vesicles. Leucoplasts with dense matrix and mitochondria are frequently found closely appressed to the nuclear envelope and in close contact with each other. Pores in the cuticle are filled with fluffy osmiophilic material (c)