153 



having the uppermost swollen part of the ramuli convex and not 

 more or less disciform or even concave. The lowest ramuli are 

 commonly more or less cylindrical, higher up they become more 

 and more swollen at the apex; they have a rather long, thin stalk 

 often over % of the length of the whole ramulus and then swell 

 suddenly. The swollen part is flattened convex in the uppermost, 



Fig. 124. Caulerpa mcemosa iForsk.) Weber- van Bosse \diV.occidentalis(i . Ag\ 

 From Christiansfort (St. Jan). (About 1 : 1.) 



outwardly bent side. The figure quoted of Reinke gives a very 

 good illustration of this variety; cfr. also the figures given here (Figs. 

 123 and 124). 



Var. occidentalis besides often showing a great resemblance to 

 var. uvifera can also bear a great likeness to var. laetevirens Mont.; 

 but while the characteristic for this form is, that the ramuli are 

 either cylindrical or grow evenly thicker upwards, the ramuli in 

 var. occidentalis become suddenly swollen at the apex. 



