Secretory tissue - a type of permanent plant tissue. Secretory tissues can be on the surface of the plant organs or inside them. These secretory tissues that are inside the body can accumulate substances secreted inside the cell or secrete them into the intercellular spaces [1].

Surface secretory works are:

Epidermal glandular cells, often secreting essential oils, giving the flowers a scent of leaves and other organs [2]. Typically, such cells appear on the upper surface of the epidermis, less often on the lower. Essential oils are released gradually through the membrane of epidermal cells [1].
Italian glandular, for example in pelargonium. They consist of several cells, and the proper secretory cell is placed at the top of the Italian [2]. Secretory hairs also include Italian nettles and hops [1]. Nettle hair ends with a small head that breaks under pressure, and a sharp, silica impregnated skin sticks to the body by injecting burning liquid [2].
Gingerbreads present in flowers of plants pollinated by insects. Giodnik, also called the nectary, is a group of cells that secrete nectar [2] [1].
Water separating or diluted mineral salt sprayers [3].
Secretory works inside plant organs are:

Resin wires forming a set of channels surrounded by resin cells. Inside the wires there is a resin [2].
Dairy tubes created by branched milk cell systems, lacking transverse cell walls [2]. Considerable amounts of milk cell secretion are found, for example, in onions, giving it a characteristic smell [1]. In the opium poppyseed, the composition of the dairy juice includes poisonous alkaloids [2].
Glandular cells that produce essential oils that accumulate in the air after the secretory cell breaks down. In this way, internal tanks of volatile oils are created in citrus fruit [2].
Secretory idioblases, i.e. cells that collect secretions in their interior. Depending on the type of secretion, they include: tannin, silica, myrozine, crystal-bearing, mucinous cells and lithocysts and internal secretory trichomes [3].