WB01705.gif (1157 bytes)  Epidermis-6  WB01704_.gif (383 bytes)
BeeErigeron.jpg (20701 bytes) Plants produce nectar which attracts all sorts of visitors. The nectar in this case is produced by cells at the base of the flowers.
NectariesEuphorbia240.jpg (16108 bytes) Species of Euphorbia produce large showy Nectaries. Poinsettia belongs to this family.

NectariesPassionLab175.jpg (9867 bytes)
Nectaries of the passion flower (Passiflora). Locate the critters in the linked picture. These ants probably defend the plant against herbivores.

PassionFlr300.jpg (32899 bytes)
ExFlrNectRicin200.jpg (3482 bytes)

Nectaries on the petiole of Ricinus (Castor Oil plant). The disk-shaped Nectaries are on the petiole where it joins the leaf blade.

ExFlrNectRicinClos200.jpg (5370 bytes)
NectXS400.jpg (34015 bytes)

Cross-section of a Ricinus Nectary. The secretory cells are on the upper surface in the center of the image.
SecEpiTransitionPalisade400.jpg (50189 bytes)

The secretory cells develop from the Epidermis. Non-secretory cells are on the left side of the image. The elongating columnar cells are becoming secretory in nature.
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