76 BULLETIN OF THE 
which must be considered a form intermediate between P. Ehrenbergii 
and Victorella. 
The architecture of the Victorella and Paludicella stocks is, then, sim- 
ilar, in that they both consist of a row of individuals successively formed 
at a stolonic tip. The resemblance is heightened by the fact that, as in 
Paludicella, so also in Victorella, a pair of lateral buds is given off from 
each zooecium to form lateral branches (Kraepelin, ’87, p. 157). As in 
Paludicella, so also in Victorella, communication plates, Mosettenplatten, 
arise early to separate the zoocia from each other. But Victorella 
differs from Paludicella in this, that while in the latter the neck of the 
polypide does not become the centre of origin of new buds, in the former 
it does, just as is the case in Plumatella (Kraepelin, ’87, Plate III. 
Fig. 75) ; that is to say, there are laid down from the tip of the branch 
three masses of bud-producing tissue, besides that which goes to form 
the polypides of the primary branch. The graphic representation of 
this species will therefore be more complicated than that of Paludicella, 
and has this form : — 
* * * 
%* + * * * 
xd» Bs ara *aq x Be 
* * * * * * 
% * * 
axs Ar AHA a 
f * * * * 
* 
()#Dx Cea * Bx b% ax ax Ax cx bx ax ax Br ax 
* 
* * * * * 
»Ax ax DHA a 
* A yd 
* * * * * * 
xb» Bs ar axa Be 
* * * * * 
* * * 
* 
*C% 
%* 
Jompare with (1), page 73, and (4), page 74. 
From around each individual of the series A, B, C, etc., which has 
been derived from the tissue of the stolon tip, there arise- series of 
