56 



inated in situ , £,nd v/hich contain tv/o nuclei (fie. 105) . 



ITuclear divisions in the cystocarp are of the usual 

 type. In the divisions of the sporogenous nuclei, tiie niun- 

 iDer of chromosoraes is ah out 14 (fig. 105a) . 



Pood in5,terial appears to he passed into the cystocarp 

 from the vegetative cell on v/hich it is horne . Figure 105b 

 shows a section tlirough tlie connection het\/een the he.sa,l 

 cell of the cystocarp and the adjacent vegetative cell. In 

 the cytoplasmic pad occtirs a great abundance of the spheres 

 of food material mentioned on page 2,4 • 



ASEXUAL RKPRODUCTION (Tetraspores) . 



The tetraspores are formed in a ring around the upper 

 border of any cell belov/ the a,pex of tlie filament (fig. 4). 

 The ring of tetraspores appears to encircle the node, fit- 

 ting snugli" in tlie constriction bet\/een neighboring vegeta- 

 tive cells. On the outside of the tetraspores a circle of 

 involucral rays grows up around the sorus. The munber of 

 these is varie.ble; there are often only 6 or 8; sometimes 

 there sTe as many as 20. They appear rather late in the 

 development of the sorus, in some cases the most advanced 



