190 



SUMiMAEY OF CURRENT RESEARCHES RELATING TO 



can be distinguished in early embryonic stages by slight differences in 

 dimensions, and in certain Cryptogams mitochondrias of intermediate 

 forms between those of Algse and Muscinete have been seen. Work on 



G« 





:| V. 



Fig. III. 



Mm" ^' 



Fig. II. 



I 



■>^ 4»..'- 



■ M. 





Fig. IV. 



M P 



II. Filament of Endomyces Magnusu. Gg, fatty globules ; m, mito- 

 chondrias ; V, vacuoles in various stages of development : 

 N, nuclei. 



III. Very young cell. 



IV. More advanced cell, mp, chondriosomes. 



V. Gg. M. MP- 



Fig. V. — Cell in last stage. The chloroplastids (mp) in their final 

 form ; the mitochondrias which have not assisted in their 

 formation take the form of typical chondriosomes (m). 

 V, vacuole. 



certain fungi likewise confirms these results. In conclusion, it is shown 

 that the mitochondrias of plant-cells have elaborate functions in that 

 certain of them can produce starch, while the remainder of them develop 

 into the colour-bearing plastids ; this is in complete agreement with what 



