502 BOTANICAL GAZETTE [December 



PLATE XXXV 



The germination of the zoospore of Aglaozonia reptans 



Fig. 203. — Zoospore 2 hours after becoming quiescent: cell wall has just 



developed; resting nucleus with a centrosome-like structure and radiations. 



Fig. 204. — Zoospore 20 hours after becoming quiescent: nuclear condition 



is about similar to fig. 203. 



Fig. 205. — Zoospore 24 hours after becoming quiescent: no radiations 



visible. 



Figs. 206-208. — Drawn from material fixed 24 hours after becoming 



quiescent. 



Fig. 206. — Resting nucleus with radiations: elongation of the sporeling 



and thickening of cell wall at the elongated part is noticeable. 



Fig. 207. — About the same stage as in the previous figure. 



Fig. 208. — Early prophase. 



Fig. 209. — Prophase: 24 chromosomes clearly present. 



Fig. 210. — Cross-section through the elongated part of a sporeling: nucleus 

 in prophase, showing 24 chromosomes and a nucleolus. 



Fig. 211. — Metaphase: general contour of the sporeling is spherical. 



Fig. 212. — Polar view of the metaphase; 24 chromosomes clearly in view. 



Fig. 213. — Metaphase: the sporeling has elongated. 



Fig. 214. — Metaphase viewed from the pole: the sporeling has elongated 

 at two points. 



Fig. 215. — Anaphase. 



Fig. 216. — Telophase. 



Fig. 217. — Sporeling of 2 cells: nucleus of the basal cell is in prophase; 

 24 chromosomes visible. 



Fig. 218. — Sporeling of 2 cells: nucleus in metaphase. 



Fig. 219. — Sporeling of 2 cells: nucleus of terminal cell in early prophase; 

 24 chromosomes present. 



Fig. 220. — Nucleus of terminal cell in prophase. 



Fig. 221. — Nucleus of terminal cell in metaphase viewed from pole. 



Fig. 222. — Two nuclei simultaneously in prophase; 24 chromosomes 

 present. 



Fig. 223. — Sporeling of 3 cells. 



Fig. 224. — Sporeling of 3 cells: nucleus in middle cell in prophase; 24 

 chromosomes present. 



Fig. 225. — Sporeling of 3 cells: nucleus in basal cell in prophase; 24 chromo- 

 somes present. 



Fig. 226. — Sporeling of 4 cells. 



Fig. 227. — Sporeling of 4 cells: nuclei in lower cells in metaphase. 

 Fig. 228. — Sporeling of 4 cells: two upper cells lie side by side in the direc- 

 tion perpendicular to the axis of the sporeling. 



