1. Proerythroblast - the earliest recognizable cell of the erythroid series:
2. Basophilic normoblast:
3. Polychromatophilic normoblast:
4. Orthochromatic normoblast:
5. Reticulocyte. SEM picture
6. Erythrocyte: SEM picture
7. Erythropoiesis - all stages.