👉 Haematocystis is a genus of fungi in the family Ascomycota. They are known for their ability to produce large numbers of small, round white cells called haemocytes that are responsible for the production of haematopoietic stem cells. These haemocytes are essential for the maintenance and growth of blood vessels, muscle cells, and other tissues. Haematocystis is a type of fungus that has been found in various environments around the world. Some species have