A Greek word came to Latin as androecium and then to Spanish as androecium. It
is a concept used in the field of botany with reference to the male
whorl of flowers in spermatophyte plants (also known as phanerogams).
The whorls are at least three organs or appendages that are
in the same plane around a stem. In the case of androceo, it is made up of stamens (male
organs of the flower). It can be said, in this way, that the androceo is the
sector of the flower where the male gametes are
produced. These gametes are found in the pollen grains.
the stamens of the androecium are made up of the filament and
the anther. The filament is the sterile part of the
androecium; its extension varies in each case: it can be very short or very
long, or even be absent. When the latter occurs, the anthers are said to be sessile,
that is, they are subject to the substrate in the absence of
the support that the filament would provide. Although it usually has the shape
of a thread, it can also have certain appendages and have a considerable
thickness, so we are not talking about a strict appearance for all individuals.
Unlike the filament, the anther is the fertile part of the
androecium. The normal thing is that it is made up of two thecae (cells
within which the formation of spores takes place; each one of them has two
microsporangia or pollen sacs), as occurs in the case of the Malvaceae; the Megatritheca,
however, have three. A sterile portion of tissue known as the connective is
responsible for uniting the teak.
The pollen that contains the gametes is produced from the
anther. This output, known as dehiscence, can be carried out
in different ways according to how the anther opens. It takes place after the
maturation of the pollen grains and the tissue in charge of this task is called endothecia.
When the opening of the anther of the androceo occurs in all the extension of
the septum that divides the pollen sacs, which occurs more
frequently, we speak of longitudinal dehiscence. In the Lachemilla and Hippocratea,
on the other hand, the so-called transverse dehiscence takes
These are not the only two possibilities of dehiscence in the androcean, but
there are others that are characterized by a location in limited regions, which
rise as windows or leaflets; This is the case of poricidal dehiscence,
in which the endothelial tissue does not exist and therefore
the exit of the pollen is carried out by means of the rupture of the tissue of
the upper end of the anther and the formation of specific pores for this task.
The number of stamens in the androceo is very variable: in some cases it can
be only one, as occurs in some Euphorbiaceae; the Oleáceas,
on the other hand, have two; in the Mirtáceas, several are
appreciated. Taking these examples into account, the names given to flowers according
to their number of stamens are monandras, diandras and poliandras,
It should be noted that, in the structure of the flower, the androecium
surrounds the gynecium: the female reproductive part that
consists of carpels. Androcea is usually found in the perianth, which forms with
the sepals and petals. It is important to mention that the androceo can be
shorter or more extensive than the perianth, sometimes coming out of it. On the
other hand, the position of the whorls also varies according to
the floral species.