Fig. 11

Morphological features of gametocytes, which are used for identification of Haemoproteus species parasitizing Ciconiiformes birds. Macrogametocytes (a, b) of Haemoproteus crumenium (a) and H. ciconiae (b). Note that nucleus of H. crumenium macrogametocyte locate close the erythrocyte nucleus (a), but this is usually not a case in H. ciconiae (b). Long simple arrows—host cell nuclei. Short simple arrows—parasite nuclei. Simple arrowheads—pigment granules. Simple wide short arrows—vacuoles. Other explanations are given in the text