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Figure 5. The nectary of Fatsia japonica (Araliaceae) A. Electron micrograph (SEM) of the
nectary surface shows numerous hollows ( arrows ) that indicate the position of the stomata.
Bar = 100 µm. B. Oblique section of the nectary stained with PAS and auramine O and ob-
served by epifluorescence. A thick cuticle with a complex reticulate pattern can be observed.
The guard cells of the stoma ( asterisks ), easily recognizable by their small size and starch
content, are located at the level of the inner epidermal layer. The arrow indicates the sub-
stomatal chamber. Bar = 20 µm.
Figure 6. A nectarostoma of Daphne sericea (Thymelaeaceae) occluded by granular material.
Bar = 10 µm.
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