Fig. 7

Morphological features of gametocytes, which are used for identification of Haemoproteus species parasitizing Caprimulgiformes birds. Macrogametocytes (a, b) and microgametocyte (c) of Haemoproteus caprimulgi (a–c). Note the markedly pleomorphic form of fully grown gametocytes (b, c). Advanced growing gametocytes often do not adhere to the nuclei of infected erythrocytes (a). Long simple arrows—host cell nuclei. Short simple arrows—parasite nuclei. Simple arrowheads—pigment granules. Simple wide long arrows—unfilled space between growing gametocyte and the nucleus of infected erythrocyte. Other explanations are given in the text