Monday, May 11, 2009

What parts of the flowers are male structures? Female structures?

If I could have few for both....that would be great! Thanks!

What parts of the flowers are male structures? Female structures?
Androecium is the organ for male reproductive system. It is composed of stamens. The number of stamens varies from species to species from one to infinite. An ideal stamen consists of filament and anther. Anther is having lobes which are connected by the connective tissue in between the two lobes. Antherlobes contain pollen grains which are the male gametophyte. During pollination the pollen grains are carried by different vectors such as wind, insect, birds etc. to the female organ of the same flower or different flower.


The female reproductive organ of a flower is called as gynoecium which is composed of ovary , style and stigma. Gynoecium may have single ovary or many ovaries fused together. The style is connected to the ovary and it generally protrudes out of the flower. On the tip of the style there is flat structure called as stigma. This is a sticky surface and pollen grains reside on the stigma after pollination. The stigma gives necessary moisture for the pollen grain to germinate and the pollen tube formed from the pollen travels through the style upto the ovule which is present inside the ovary.
Reply:male structures are androcium and female are gymnocium


No comments:

Post a Comment