OEDOGONIUM 125 
132. Oe. braunii Kuetzing; Pringsheim. 
ae XLVI, fig. 458.) 
Kuetzing 1849, p. 366; 1853, 12, Pl. 36, fig. 3; Pringsheim 1858, p. 70, Pl. 
5, fig. 6; Wolle 1887, ie ce), Jell 79, Gee. 6 and 7; Oe. calcareum Cleve var. gaditanum 
Lewin 1888, iy dks JE, Si, sales, Gas Hirn 1900, p. 194, Pl. XXXII, fig. 197; Collins 
1909, p. 249: Heering 1914, De 172; Tiffany 1926, p. 102. 
Dioecious, nannandrous, gynandrosporous; oogonium 1, ovoid to 
subglobose, pore median; oospore globose, not filling oogonium, spore 
wall smooth; androsporangium 1-2; basal cell elongate; terminal cell 
apically obtuse; dwarf male usually on suffultory cell, stipe somewhat 
curved; antheridium exterior, 1; vegetative cells 13-15 25-60y; 
suffultory cell 16-20X28-50u; oogonium 380-37 33-43"; oospore 
27-33 X 27-334; androsporangium 13-15X11-12u; dwarf male stipe 
7-12 X 20-28; antheridium 5-8 9-10u. 
United States: Iowa, Illinois, New Jersey, Pennsylvania, 
Michigan; Austria, England, Denmark, Finland, France, Ger- 
many, Spain, Ireland, Latvia, Norway, Sweden; Africa; British 
Columbia. 
132a. Var. hafniense (Hallas) Hirn. 
(Pl. XLVII, figs. 460-462.) 
1906, p. 10, Pl. III, fig. 13; Oe. hafniense Hallas 1905, p. 398, fig. 1. 
A little smaller; idioandrosporous; oospore globose or angular- 
globose; vegetative cell 12-15X25-60y; oogonium 23-30 28-35y; 
oospore 21—28 X 21-284; dwarf male stipe 6-812-21u; antheridium 
Cope: 
Denmark. 
132b. Var. zehneri Tiffany. 
(Pl. XLVII, fig. 459.) 
1927, 95 204, Pil EX fig. 2. 
Somewhat larger in all dimensions; oospore ovoid; vegetative cell 
12-24 34-72u; suffultory cell 21-32X48-52u; oogonium 40-50 
48-60; oospore 3444%X36-50u; dwarf male stipe 8-10 16-24u; 
antheridium 7-8 X 8-12u. 
United States: Indiana. 
The species is near, but smaller than, Oe. gallicum (No. 131) 
and Oe. flavescens, below. Var. hafniense is smaller than the 
type and is idioandrosporous; var. zehnerit is somewhat larger 
than the species and has ovoid oospores. 
133. Oc. flavescens (Hassall) Wittrock). 
(Pl. XLIX, fig. 471.) 
(?) Vesiculifera flavescens Hass. 1845, p. 206, Pl. 53, fig. 9; Oe. flavescens Wittr. 
1870, p. 127; Oe. flavescens (Hass.) Wittr. var. gynandrosporum Hirn 1895, p. 16; 
Hirn 1900, p. 196, Pl. XXXII, figs. 199 and 200; Collins 1909, p. 249; Heering 1914, 
p. 174, fig. 232; Tiffany 1926, p. 103, Pl. IX, fig. 95. 
Dioecious, nannandrous, idioandrosporous or gynandrosporous; 
oogonium 1, ellipsoid-globose to subglobose, pore median; oospore 
