Bailes Oe HAon tT E 47 
40b. Var. litoralis Hirn. 
(Pl. VIII, fig. 68.) 
1900, p. 373, Pl. LXIV, fig. 395; Tiffany 1928, p. 149, Pl. X XI, fig. 68. 
Larger; vegetative cells 22-28X28-56u; oogonia 38-45 75-87; 
oospores 36-43 73-85y; androsporangia 17-20 18-20u; dwarf male 
stipes 15-17 X 28-30; antheridia 9-13 X6—9u. 
Sweden. 
This variety is the only Bulbochaete known to inhabit 
brackish waters. 
41. B. minor Al. Braun. 
(Pl. VI, fig. 54.) 
In Kuetzing 1849, p. 422; Wittrock 1874, p. 54; Hirn 1900, p. 369, Pl. LXIII, 
fig. 390; Collins 1909, p. 275; Heering, p. 242; Tiffany 1926, Pl. X, fig. 114; 1928, 
p. 149, Pl. XX, fig. 54. 
Dioecious, nannandrous, gynandrosporous; oogonia ovoid, erect or 
rarely patent, below terminal setae, androsporangial cells, or more 
rarely vegetative cells; outer oospore wall longitudinally ribbed; andro- 
sporangia epigynous, subepigynous, or scattered, 1-7; dwarf males on or 
near oogonia; antheridium exterior, 1-4; vegetative cells 18-25 X 27-50p; 
oogonia 32-42 X 59-694; oospores 30— 40X 1-67; prices fee 15—16 
X 16-214; dwarf male stipes 12-15 X 22-24u; antheridia 6-10 X 6—7u. 
United States: Iowa, Indiana, Illinois, New Jersey; Ger- 
many, Sweden, Austria, England. 
41a. Var. germanica Hirn. 
(Pl. VI, fig. 55.) 
1900, p. 370, Pl. LXIII, fig. 391; (?) B. mimor Al. Br. in De Bary 1854, p. 72; 
B. minor Al. Br. in Pringsheim 1858, p. 74; Heering 1914, p. 242, fig. 382; Tiffany 
1928, p. 149, Pl. XX, fig. 55. 
Vegetative cells 15-22 23-56u; oogonia 30-35 X 56-65; oospores 
28-33 X 54-63; dwarf male stipes 10-1221-24uy; antheridia 6-9 
X 6-7. 
Germany. 
This variety on the basis of dimensions and habit seems 
scarcely tenable. I have not been able to examine the original 
material, however, and have followed Hirn’s disposition of it. 
42. B. bullardi Transeau and Tiffany. 
(Pl. VII, figs. 52 and 53.) 
1919, p. 241, Pl. XIV, figs. a-e; Tiffany 1928, p. 149, Pl. XX, figs. 52 and 53. 
Dioecious, nannandrous, idioandrosporous; oogonia ‘ovoid-ellipsoid 
or ellipsoid, erect, terminated by long setae, pore evident and supra- 
median; oospores filling or nearly filling oogonia, ribs of outer wall of 
oospore dentate, the teeth connected by transverse lines, longitudinal 
ribs uniting irregularly; androsporangia 1-6; dwarf males slightly 
curved, on oogonia or suffultory cells or vegetative cells; antheridia 
exterior, 1-3; vegetative cells 20-32 X 60—-165y; oogonia 56-66 XK 70-96y; 
