Question

With the help of diagram show four condition in androecium.​

Answer 1

Answer:

Explanation:

The androecium is the third set of floral organs composed of stamens or micro- sporophylls.

Ordinarily, each stamen is composed of a slender stalk-like filament sup­porting a knob-like spore case or the anther .

Each anther consists of two lobes (anther lobes) connected by a connective which can be clearly seen on the dorsal side as an extension of the filament. Each anther lobe, again, has two pollen sacs or pollen chambers placed longitudinally. There are longitudinal grooves or sutures along the ventral face of the anther demarcating the pollen chambers. Each pollen chamber re­presents a microsporangiur and contains innumerable microspores or pollens.

The stamen, therefore, is a microsporophyll bearing four microsporangia. While this is the normal case, there are some flowers where the anther possesses only two pollen chambers (i.e., bisporangiate) and in Malvaceae even these two pollen chambers fuse developing a mature unilocular anther.

A flower may some­times be reduced to a single stamen as seen in the cyathium inflorescence .