Wednesday, April 1, 2015

Anthers and stigmas and styles, oh my


Like humans and animals, plants too have genders and female and male parts. There is a stamen, anthers, styles, and stigmas. Certain parts are fertilized through the transportation of pollen from organ to organ. Pollen from the anther is transferred to the stigma, and then leads to the ovaries of the plant. When the ovules are fertilized, they develop into new seeds and grow new plants.

JPEG Image

This is a picture of anthers surrounding the stigma. In a supposed "perfect flower," there are both male and female reproductive anatomy. Here the anthers and stigma are part of a single flower. However, in some species the female and male anatomy are separated.

Here we have a stamen, a male reproductive organ of a flower. On this organ, there is a stem coming up from the base with an anther on the end. This part of it produces and releases grains that contain sperm cells.
  
This is the female organ of the flower, the carpel. It is a stem, the style, with a sticky piece, the stigma, on the end that pollen rains stick to.

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