Cryptococcus neoformans var grubii
Cryptococcus neoforman is a type of yeast-like fungi, the causative agent of cryptococcosis in humans. This species is characterized by mycelial-yeast dimorphism. The teleomorphic stage of the Filobasidiella neoformans fungus forming hyphae is often found in bird droppings. The yeast stage (anamorph) of Cryptococcus neoformans develops in the human body. During growth in the form of yeast, Cryptococcus neoformans forms a prominent capsule, formed primarily from polysaccharides, which can be easily visualized using mascara. Pigment particles do not penetrate the capsules but surround the spherical yeast cells, forming a halo around the cells.