Atlas of plant and animal histology

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Virtual microscopy

FLOWER



Image: typical flower stained with safranin / Alzian blue.

Sepals: they are modified leaves protecting the inner flower structures.

Petals: they are modified leaves near the reproductive structures, stamen and pistil. The petal function is attracting pollinators and protecting the reproductive structures.

Style: it is the longer structure of the pistil that connects the ovary with the stigma. The pollen tube grows along the style to reach the ovary for fertilization.

Anther: it is the capsule of the stamen made up of two thecas, bags where pollen is found.

Theca: it is the bag that encloses the pollen. The theca is found in the anther of the stamen.

Pollen: it is the male gametophyte, which contains the microspore. Fertilization takes place when microspore and macrospore (in the female gametophyte of the ovary) are fused together.