Description oe Plates 245 



Plate 35 (350: 1) 

 I. 2. Myxonema attenuatum. Portions of main filaments (540), p. 206. 

 3. The thickly branched lower portion (547). 



Plate 36 (350: 1) 



I, 2. Myxonema stagnatile (553), p. 207. 



3. Myxonema subsecundum. Cell outlines of dried material from Pleasantville, N 



J., p. 207. 



Plate 37 (350: 1) 



1. Chaetophora elegans. Part of the basal portion of a colony (602), p. 21 1. 



2. Upper portion of a branch showing the open character of the branching (392). 



3. A setiferous terminal fascicle of branchlets (367). 



Plate 38 (350 : 1 ) 



1. Chaetophora pisifo r mis. Upper part of the filaments which are very strictly 

 branched throughout (434), p. 212. 



2. Chaetophora incrassata. A small fascicle of branchlets with some of the main 

 filaments (601), p. 214. 



3. A fascicle of branchlets forming akinetes, well supplied with reserve materials 

 (345) ; cf. Chaetophora monilifera Kiitz. 



Plate 39 (350: 1) 



1. Chaetophora attenuata. Upper part of filaments (491), p. 213. 



2. Part of the basal portion of a colony (466). 



Plate 40 (255 : 1) 



1. Draparnaldia plumosa. Cells from a main stem ; Flemming-haematoxylin 

 preparation (218), p. 218. 



2. A small fascicle of branchlets from near the summit of the plant (360). 



3. Draparnaldia glomerata. A small fascicle of branchlets on cells of the main 

 filament (280), p. 220. 



4. Rhizoidal portion of a young plant (545). 



Plate 41 (255 : 1) 

 Draparnaldia platyzonata. The small branch was removed from the nearest node 

 of the main filament (363), p. 222. 



Plate 42 (575 : 1) 



1. Endoderma Wittrockii, in the cell-wall of Elachista fucicola (453), p. 226. 



2. Epicladia flustrae. About half of a thallus (451), p. 225. 



3. 4. Chaetosphaeridium Pringsheimii (497), p. 228. 



5. Herposteiron confervicola. A well-developed thallus ; a female gamete form- 

 ing in the large cell (420), p. 230. 



6. A vegetative filament (448). 



7. Male gametes forming in one cell (420). 



