Q6 CASPER 0. MILLER. 



figure. Occasionally one gets specimens where the fusion of 

 these expansions is more extensive. 



When the plasmodia spread out as in the figure, one may 

 see microcysts which have been taken up from the clump by 

 the Plasmodium and carried along the branches toward the 

 periphery. 



One frequently finds small plasmodia composed of only a 

 few branches which do not form as close a network as in the 

 figure, and the ends of the branches are not so angular. 



The writer has not, as yet, sufficiently studied plasmodia from 

 Stemonitis A, B, and C to be able to point out any con- 

 stantly marked characteristics which distinguish them. They 

 are all more transparent and not so granular as the other 

 plasmodia which have been studied. 



Fig. 7 represents a portion of the periphery of a small Plas- 

 modium ofPhys. cine r cum taken from a culture and allowed 

 to spread out in the same way. It has more the appearance of 

 a spread-out, perforated, protoplasmic plate than a network 

 of branches, and one cannot distinguish between primary and 

 secondary branches. 



Fig. 8 represents the peripheral expansion of a Plas- 

 modium taken from a hay culture in which were Chon. diff. 

 and Didym. microcarpon. Here there are several large 

 trunks going to a broad peripheral expansion, less perforated 

 than Phys. cin. 



The nuclei of the plasmodia of Stem. A are distributed 

 irregularly along the branches of the network and in the 

 peripheral expansions. In some of the larger branches they 

 may be collected in groups, where, as in other branches, they 

 are situated at irregular intervals. In the larger branches 

 the most of the nuclei lie in the peripheral layer of proto- 

 plasma, often immediately under the surface. As a rule one 

 does not see the nuclei in the living plasmodia, but occasion- 

 ally, if the nucleus lies at the side of the branch, a nucleus 

 can be seen as a spindle-shaped body just beneath the surface, 

 and may cause a bulging at that point. 



The shape of the nuclei is usually that of a flattened oval 



