THE AUSTRALIAN NATURALIST. . 111 
“Sao Mofere 
Pelra spores. 
Antheridia. 
Cell wall. 
Profo plasm 
Of cel. 
Protoplasmic 
<onnection. 
—Carpospores 
t—Fertiliged Corpo~ 
/Gonurr, (Cyslocar P). 
Fericentral cells. 
Fig. 1. Male plant. Figs. 2 and 3. Female plants. 
: Fig. 4. Asexual plant. 
being joined to its neighbour by a strand of the same substance. 
The plant branches in a very regular manner, giving the feathery 
appearance and each branch grows by an apical cell. The entire 
plant is enclosed in a gelatinous sheath causing it to be difficult 
to manipulate unless mounted and dried immediately after col- 
lection. ies 
Thé reproduction of this form is typical of the class. There 
are three distinct plants produced, male, female and asexual. 
The male plants produce élusters of antheridia over’ the 
branches. These liberate naked spermatia, which have no cilia 
or motile bodies of any kind, and are carried ‘along by the motion 
of the water. 
