1917] 



DUNN—DUMONTIA 



* 



467 



Fig. 74. — Partly shaded; longitudinal section of germinating carpospore 

 showing structure and distribution of chromatophores and structure of cyto- 

 plasm; Xiooo. 



Figs. 75, 76. — Sections of germinating carpospores showing sequence of 

 cell walls during germination; X170. 



Fig. 77.— Nucleus of cell 3 of auxiliary cell branch showing chromatin 

 granules passing from nucleolus to periphery of nucleus; X1400. 



Fig. 78. — Nucleus of cell 3 of auxiliary cell branch showing chromatin 

 granules at periphery of nucleus; X1400. 



Fig. 79. — Nucleus of cell 3 of a carpogonial branch; small chromatin 

 granules present on linin net ; X1400. 



Fig. 80. — Nucleus of cell of an auxiliary cell branch; chromatin in small 

 granules; no nucleolus or linin net present; X1400. 



Fig. 81 •—Nucleus of cell 1 of a carpogonial branch showing 7 bodies which 

 may be chromosomes; X1400. 



Fig. 82. — Section of 2 cells of an auxiliary cell branch showing chromatin 

 granules in nuclei; Xiooo. 





