252 



ILLINOIS BIOLOGICAL MONOGRAPHS 



[490 



EXPLANATION OF PLATE 



Figs. 525 and 526. Spores of Henneguya acerinae. After Schroder (1906, Figs. 5 and 6). 



X1650. 

 Figs. 527 to 535. Henneguya gigantea. After Nemeczek (1911). XlOOO. 

 Fig. 527. A mature spore with extruded polar filaments (1911, Fig. 1). 

 Figs. 528 to 535. Stages in development of spores (1911, Figs. 2 to 9). 

 Figs. 536 to 539. Spores of Henneguya{?) sp. After Nemeczek (1911, Figs. 12 to 15). 



XlOOO. 

 Figs. 540 to 543. Henneguya gasterostei. After Parisi (1912). X about 1500. 

 Fig. 540. A disporous trophozoite (1912, Fig. lOd). 

 Figs. 541 and 542. Two spores (1912, Figs. lOf and lOe). 

 Fig. 543. A young spore (1912, Fig. lOc). 

 Figs. 544 and 545. Spores of Henneguya neapolitana. After Parisi (1912, Fig. 11). X 



about 1500. ■ 

 Figs. 546 to 549. Various trophozoites of Henneguya mictospora. Original. 

 Fig. 546. A monosporous trophozoite with a young spore. X950. 

 Figs. 547 and 549. Trophozoites in vivo. X650. 

 Fig. 548. A stained binuclea ted young trophozoite. XI 700. 



