EXPLANATIONS AND REFERENCES, 



PLATE CXXVIII. 



Figures magnified 112 diameters. 



PAGE. 

 Figs. 1, 2, 4. VAUCHERIA GEMIN ATA, sections of true plant, . . . 152 



Figs. 3, 5. Var. racemosa, . . .152 



Fig. 6. VAUCHERIA, an abnormal but not rare form of fruiting, . 1^2 



" 7. A gall produced by a Rotifer; a Rotifer's nest, . . 152 



" 8-10. VAUCHERIA HAMATA ; California specimens, . . . 152 



