236 ILLINOIS BIOLOGICAL MONOGRAPHS [474 



EXPLANATION OF PLATE 



Fig. 29L A spore of Myxidium glutinosum. After Davis (1917, Fig. 124). X1400. 



Figs. 292 and 293. Spores of Myxidium phyllium. After Davis (1917, Figs. 126 and 127). 



X2000. 

 Figs. 294 and 295. Spores of Myxidium kagayamai. After Kudo (1916, Fig. 2). X1750 



and X 1000 respectively. 

 Figs. 296 to 307. Sphaeromyxa balbianii. 



Fig. 296. A trophozoite. After Thelohan (1895, Fig. 57). X3. 

 Fig. 297. A trophozoite. After Davis (1917, Fig. 128). X640. 

 Fig. 298. A trophozoite in plasmotomy. After Georgevitch (1916, Fig. 15). 

 Figs. 299 and 300. Spores. After Thelohan (1895, Figs. 58 and 59). XlSOO. 

 Fig. 301. An end of a spore. After Thelohan (1895, Fig. 60). 

 Fig. 302. A spore treated with nitric acid. After Th61ohan (1895, Fig. 61). 

 Fig. 303. A spore. After Parisi (1912, Fig. 4). X about 1750. 

 Fig. 304. A spore. After Davis (1917, Fig. 130). X2100. 

 Figs. 305 to 307. Mature and young spores (Figs. 306 and 307). After Georg6vitch (1916, 



Figs. 17, 20 and 19). 

 Figs. 308 to 311. Sphaeromyxa immersa. After Lutz (1889: 301). 

 Fig. 308. An infected gall-bladder of Bufo aqua (1889, Fig. 1). XL 

 Fig. 309. Spores (1889, Figs. 4, 5 and 6). 

 Fig. 310. A spore (1889, Fig. 10). X600. 

 Fig. 311. A spore with extruded polar filaments (1889, Fig. 7). 

 Figs. 312 to 314. Spores of Sphaeromyxa incurvala. After Doflein (1898, Fig. 49). X 



about 1000. 

 Figs. 315 and 316. Sphaeromyxa sabrazesi. After Schroder (1907). 

 Fig. 315. A trophozoite (1907, Fig. 1). X15. 

 Fig. 316. A cross section thru a trophozoite (1907, Fig. 3). X1500, 



