Beeb OGmiAk TE 39 
Bengal, Asia. 
20. B. elachistandria Wittrock. 
(Pl. III, fig. 21.) 
1874, p. 43; B. intermedia Pringsh. 1858, p. 72, Pl. IV, figs. 15-23; Hirn 1900, 
p. 342, Pl. LVI, fig. 354; Heering 1914, p. 231, fig. 354; Tiffany 1928, p. 141, PI. 
SeVAL, Hele 
Dioecious, nannandrous, gynandrosporous; oogonia globose, patent, 
below androsporangia; division of suffultory cell nearly median; oes Buse 
wall smooth (7); androsporangia epigynous or scattered, 1-2; dwarf 
males on oogonia, small and unicellular; vegetative cells 20-24 aie 
oogonia about 4644y; androsporangia 14-16X10-1lyu; dwarf males 
9X 19u. 
Germany. 
21. B. obliqua Lundell. 
(Pl. II, fig. 26.) 
In Hirn 1900, p. 344, Pl. LVI, fig. 356; Heering 1914, p. 238, fig. 371; Tiffany 
1928, p. 141, Pl. XVI, fig. 26. 
Dioecious, nannandrous, gynandrosporous and idioandrosporous; 
oogonia depressed-globose, patent, below terminal setae or (rarely) 
androsporangia; division of suffultory cell median or nearly so; oospore 
wall smooth; androsporangia 1—?, epigynous; dwarf males on oogonia, 
antheridia interior; vegetative cells 21-27 X42-108u; oogonia 55-64 
43—51u; oospores 53-62 40-49; androsporangia 16-21 7-10u; dwarf 
male stipes 9-10 X 25—36y; antheridia 10-12 15-21p. 
United States: Michigan; Austria, Sweden. 
22. B. sessilis Wittrock. 
(Pl. III, fig. 19.) 
1872, p. 18, Pl. 1, fig. 2; 1874, p. 47; Hirn 1900, p. 338, Pl. LV, fig. 349; Heering 
1914, p. 236, fig. 366; Tiffany 1928, p. 141, Pl. XVI, fig. 19. 
Dioecious, nannandrous, gynandrosporous; oogonia subquad- 
rangularly globose, patent, below terminal setae or occasionally below 
vegetative cells; division of suffultory cell superior; outer oospore wall 
scrobiculate; androsporangia scattered, 1-3; dwarf males on oogonia 
or rarely suffultory cells, antheridia interior, pe a little curved, 
shorter than antheridia; vegetative cells 19-2238-72u; oogonia 
51-56 X 44— 50; oospores 48- 04 X 42— —48u; eo. toe <0 pn: 
dwarf males 9-11 XK 26-29u. 
France, Sweden, Canada. 
22a. Form glabra Hirn. 
(Pl. III, fig. 20.) 
1900, p. 339, Pl. LV, fig. 350; Heering 1914, p. 236; Tiffany 1928, p. 141, Pl. 
XVI, fig. 20. 
Smaller, with oospore wall smooth; vegetative cells 16-21 X32-75y; 
oogonia 44—51 & 40—45y: oospores 42-48 & 38-43; androsporangia 10-12 
X 10-124; dwarf males 9-11 K 23-27. 
Sweden. 
