50 THE: OEFEDOGONTACEAE 
The vegetative cells of this species are minutely granulate, 
with the markings spirally arranged. This character is rather 
unique among the ellipsoid members of the genus. 
49. B. brevifulta Wittrock. 
(Pl. VII, fig. 56.) 
pa ae p. 57; Hirn 1900, p. 373, Pl. LXI, fig. 382; Tiffany 1928, p. 152, Pl XX, 
Oogonia broadly ellipsoid, erect, terminated by setae; oospores with 
outer wall longitudinally and irregularly ribbed; vegetative cells 19-24 
X38-72u; oogonia 34-42 %50-56u; oospores 32-40 X 48-54u. 
Brazil. 
This description is quite incomplete and the position of the 
species must be considered temporary until more data can be 
secured. 
50. B. sanguinea Hansgirg. 
1905, p. 437; Hirn 1906, p. 26; Heering 1914, p. 242; Tiffany 1928, p. 152. 
Few celled and little branched; cell walls 2—3u thick; vegetative cells 
26-35 X 24-50u, with contents blood-red in color; reproductive cells 
unknown. 
Austria. 
Hansgirg gives no figures for this interesting form, but 
compares it in habit with B. minor. A somewhat similar 
species, B. purpurea Corda (Hansgirg loc. cit.) with purple-red 
vegetative cells alternating with colorless empty cells, was 
described from Bohemia. Cleve (1895) also observed a red 
Bulbochaete, collected in October, 1894. Until more is known 
of the reproductive structures of these forms, their specific 
position must be merely a provisional record. 
51. B. horrida Nordstedt. 
(Pl. VI, fig. 42.) 
In Hirn 1900, p. 355, Pl. LIX, fig. 371; Tiffany 1928, p. 152, Pl. XIX, fig. 42. 
Dioecious, nannandrous; vegetative cells medianly plicate; oogonia 
ellipsoid; antheridia of dwarf males 1—’; vegetative cells 16-25 X 12-25; 
basal cells 17-20 10—20uz. 
South America. 
Little is known of the reproduction’ of this interesting 
species, and figures are available only for the vegetative cells. 
The median plications of the latter, however, readily separate 
it from any other species of the genus known at the present time. 
Hirn’s record of Lagerheim’s collections in the Guianas in 
which dwarf males and ellipsoid oogonia were seen is our only 
information regarding the fructification of the species. 
