A MALAY FORM OF CHLOROCOCCUM HUMICOLA. 
' 
Fig. 26. Mass of young aplanospores rounding themselves off from one another, within the 
i mucilaginous envelope formed by the disintegration of the mother-cell-wall. 
E successive bipartitions of the aplanospores. —— 
E Fig. 28. Development of cilia by palmelloid cells after a change of medium. 
motile state. 
E ch. , chloroplast. 
Fig. 97. Part of a mucilaginous stratum (structureless) with groups of cells formed by 
Fig. 29. a, Palmelloid cell which has increased in size without further division; 4, : 
: vegetative cell produced directly from an aplanospore without an intermodisin : 
` Fig. 30. Zoogonidia produced from palmelloid cells, differing i in size with the number of 
preliminary divisions of the palmelloid cella. pig., pigment-spot ; py., pyrenoid ; 
Fig. 31. a-c, Successive stages in the fusion of these zoogonidia ; ; d, zygote Sp into 
vegetative cell, 
