218 ILUNOIS BIOLOGICAL MONOGRAPHS [456 



EXPLANATION OF PLATE 



Fig. 54. A spore of Ceratomyxa attenttata. After Davis (1917, Fig. 28). X950. 



Figs. 55 and 56. Spores of Ceratomyxa recurvata. After Davis (1917, Figs. 32 and 33). 



X1500. 

 Figs. 57 to 60. Spores of Ceratomyxa lunata. After Davis (1917, Figs. 34 to 37). X1500, 

 Fig. 61. K sport ol Ceratomyxa abhreviata. After Davis (1917, Fig. 41). X1500. 

 Fig. 62. A spoie oi Ceratomyxa flagellifera. After Davis (1917, Fig. 42). X1500. 

 Fig. 63. A spoTe oi Ceratomyxa agglomerata. After Davis (1917, Fig. 45). X1500. 

 Fig. 64. A spore of Ceratomyxa amorpha. After Davis (1917, Fig. 47). X1500. 

 Figs. 65 to 67. Spores of Ceratomyxa monospora. After Davis (1917, Figs. 57, 56 and 55). 



X1500. 

 Figs. 68 and 69. Spores of Ceratomyxa streptospora. After Davis (1917, Figs. 59 and 60). 



X1500. 

 Fig. 70. A spore oi Ceratomyxa aggregata. After Davis (1917, Fig. 63). X1400. 

 Fig. 71. A spore of Ceratomyxa undulata. After Davis (1917, Fig. 66). X1500. 

 Figs. 72 and 73. Spores of Ceratomyxa navictdaria. After Davis (1917, Figs. 69 and 68). 



X1500. 

 Fig. 74. A sport oi Ceratomyxa spinosa. After Davis (1917, Fig. 72). X1500. 



