Chapter IX — 93 — Chondrlosomes & Plastids 



chondriosomes coexistent with them behave in the same manner. 

 In the fungi, especially in the Saprolegniaceae, where there are no 

 plastids, it is easy to demonstrate that the chondriosomes are in- 

 tensely blackened by osmic impregnations, just as are the plastids 

 of chlorophyll-bearing plants. Furthermore, the Golgi material in 

 animal cells may be distinguished from the plastids by the fact 

 that it does not stain with mitochondrial techniques. 



The opinion of Kiyohara results from an initial error of ob- 

 serving living material under defective conditions. This author 

 leaves out of consideration that characteristic property of chondrio- 

 somes of becoming vesiculate during alteration (cavulation). He 

 observed cells in which the chondrioconts were already transformed 

 into vesicles and misinterpreted this phenomenon, mistaking the 

 vesicles for normal shapes of the plastids and the chondrioconts for 

 their altered shapes. 



