423 
Fig. 78. Myrionema speciosum nov. spec, a, b and c erect filaments with hairs and plurilocular sporangia; 
d erect filament with unilocular sporangia; e young filament showing the chromatophores; / part of 
the base with erect filaments in transverse section; g and h the basal disc, a, b, c, d, g, h 200 : 1 ; 
e, f 350 : 1. 
by Gran. The cells of the main filament whence the sporangia 
spring, are also in the latter species frequently transformed into 
sporangia, thus forming what Gran calls half intercalary sporangia, 
